Gospodinov, D., V. Karakostas, R. Papadimitriou, (2005), Stochastic modelling of the relaxation process after the M=9.0 Sumatra earthquake of December 26, 2004; preliminary analysis, Proc. of the 4th Con. of the Balkan Geoph. Society, 9-12 October 2005, Bucharest, Romania, pp.327-330
Gospodinov, D., B. Ranguelov, E. Papadimitriou, V. Karakostas, (2005), Statistical methods to analyze seismicity interaction in neighbor zones; application to simulated data, Proc. of the 80-years Anniv.Intern. Sci.Conference on Geology, Sofia, November 17-18, 2005, pp.185-188
Gospodinov D. and Rotondi R., (2006), "RETAS: a restricted ETAS model inspired, by Bath's law", The 4th Internat.Workshop on Statistical Seismology, The Graduate University for Advanced Studies, Shonan Village, Japan, 9-13 January 2006, ISM (Institute of Statistical Mathematics) Report on Research and Eucation No. 23, 92-95.
Gospodinov, D., R. Rotondi,(2006), Statistical Analysis of Triggered Seismicity in the Kresna Region of SW Bulgaria (1904) and the Umbria-Marche Region of Central Italy (1997), Pure appl. geophys., 163, 1597–1615
Tranos M., Karakostas V., Papadimitriou E., Kachev V., Ranguelov B., Gospodinov D., (2006), Major active faults of SW Bulgaria: implications of their geometry, kinematics and the regional active stress regime., in Tectonic development of the Eastern Mediterranean region. (Robertson A. and Mountrakis D. - eds.), Geological Society of London, Special publications 260, pp. 671-687.
Karaksotas V., Papadimitriou E., Gospodinov D., Ranguelov B., (2006), Slip distribution for the 1928 Chirpan and Plovdiv main shocks and earthquake triggering., Proc. Intl.Conf. SGEM 2006 - papers., Albena, 12-16 June., vol. 2, p.119-126.
B. Ranguelov, S. Dimitrova, D. Gospodinov, G. Lamykina, (2007). Geodynamics of the South Balkans - Seismotectonic Model, Fractality and Nonlinear Properties., in Monograph GEODYNAMICS OF THE BALKAN PENINSULA (Ed.G.Milev), Reports of Geodesy, No. 5 (80), pp. 609 – 626.
Papadimitriou E., V. Karakostas, M. Tranos, B. Ranguelov, D. Gospodinov., (2007). Static stress changes associated with normal faulting earthquakes in South Balkan area., Int. J. Earth Sci. (Geol. Rundsch.), Springer-Verlag, Volume 96, Number 5, pp. 911-924, DOI: 10.1007/s00531-006-0139-x
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Below follows a reference list of papers for which the main or partial purpose has been to study the seismicity and the geotectonics of the Upper-Thracian depression.
Bakalov P., "Earthquakes in Southern Bulgaria", Priroda, y.XXVIII, book 9-10, (1928), (in Bulgarian)
Bonchev G., "The earthquake in The Upper-Thracian valley", MIR, y. XIX, 8363-8369 (1928), (in Bulgarian)
Bonchev G., "Problems of Bulgarian geotectonics", Technika, S, 204 ń (1971), (in Bulgarian)
Bonchev S., P.Bakalov, "The earthquakes of April 14 and 18, 1928 in Southern Bulgaria", Sp. Bulg. Geolog. D-vo, y. I No2 (1928), (in Bulgarian)
Glavcheva R., "Some characteristics of the mechanical processes in the earthquake source of Aril 18, 1928 (M=7.0), Southern Bulgaria, BGS, V.10 No2, 53-61 (1984), (in Russian)
Gospodinov D., "A test of seismic zones independence in the Upper-Thracian valley", BGS, V. 11 No4, 107-112 (1985), (in Bulgarian)
Grigorova E., B. Grigorov, "Earthquake epicenters and seismic lineaments in Bulgaria", Izd. BAS, S., p.81 (1964), (in Bulgarian)
Grigorova E., D.Sokerova, L Christoskov, S.Rijikova, "Ctalog of the earthquakes in Bulgaria for the period 1900-1977”, Records of Geoph Inst. BAS, S., (1979), (in Bulgarian)
Grigorova E., L Christoskov, S.Rijikova, D.Sokerova, "Seismic lineaments and seismic activity of the seismogeniclayers in Bulgaria", Geodinamics of the Balkans, Technika, S., 25-36 (1980), (in Bulgarian)
Dachev H., "Structure of the earth crust in Bulgaria", Technika, S., 1988, (in Bulgarian)
Deneva D., "Modelling of seismic waves spectral structure of earthquakes of the Maritza zone", BGS, V.10 No3, 75-82 (1984), (in Bulgarian)
Dimitrov D., Jean-Clod Rueg, "Results of the geodetical studies of the seismotectonic parameters of the earthquake zone of April 1928 in Southern Bulgaria" BGS, V.22 No2, 63-72 (1996), (in Bulgarian)
Elenkov S., S.Maslinkova, "Space-time gap befor the earthquake in 1928", BGS V.10 No1, 114-117 (1984), (in Bulgarian)
Elenkov S., T.Stoyanov, "Study of seismic waves velocities in the Upper-Thracian valley", BGS V.12 No2, 82-87 (1986), (in Bulgarian)
Zelkov Y., "Report on the identified terrain changes and damages after the earthquake of April 18, 1928", Dokl. na Min. na Zemed., 1-2, (1929), (in Bulgarian)
Iliev-Bruchev I., (red.), "Geological hazard in Bulgaria" Izd. BAS, S., 143 p., (1994), (in Bulgarian)
Kirov K., "Contribution to the earthquake analysis of April 14 and 18, 1928 in Southern Bulgaria", Sb. BAS, book XXIX, S., 116 p., (1935), (in Bulgarian)
Kirov K., "The earthquakes in Bulgaria No29-31/1928-1930”, TMI, S., (1945), (in Bulgarian)
Kirov K., E.Grigorova, "Seismisity of Maritza valley", Izv. Geoph.Inst.BAS, V.II, 5-56 (1961), (in Bulgarian)
Mirkov M., "Levelling surveying in Southern Bulgaria seismic region", God.Darj.Geogr.Inst., 34-39 (1932), (in Bulgarian)
Report on the activity for the period from April 25, 1928 to November 1, 1931, M.V.R.N.Z., Committee for help and recovery in the earthquake zone of 1928, Darj.Pechatn., Sofia, 421 p., (1931), (in Bulgarian)
Penchev N., "Rare gases in the mineral springs and the strong earthquakes of April 14 and 18, 1928 in Bulgaria,God.Sof.Univ., Phys.-Math. f-t, V.XXVI, book 2, Himija (1930), (in Bulgarian)
Riznichenko Y., "Problems in seismology", Nauka, Moscow, 406 p., (1985), (in Russian)
Stoyanov. T., S.Rijikova, S.Elenkov, "Depth distribution of the weak earthquakes in the Upper-Thracian valley for the period 1978-1982", BGS V.10 No2, 62-68 (1984), (in Bulgarian)
Christoskov L., "On earthquake magnitude determination", Izv. Geophys.Inst. BAS, V.VI ,123-143 (1965), (in Bulgarian)
Christoskov L., "100 years seismology in Bulgaria", BGS, V.21 Nî1, 3-21 (1992), (in Bulgarian) BGS V.20 No1, 60-77 (1995), (in Bulgarian)
Christoskov L., "Basic stages in the development of Bulgarian seismology", BGS V.22 No2, 12-26 (1996), (in Bulgarian)
Christoskov L., D.Sokerova, S.Rijikova, "A new earthquake catalog of Bulgaria for the period I c. B.C.-XIX c.",Fond of Geoph.Inst.BAS, S., (1979), (in Bulgarian)
Christoskov L., D.Solakov, "An automated system for evaluation of strong earthquakes consequences for the territory of Bulgaria", BGS V.21 N3, 34-44 (1995), (in Bulgarian)
Christoskov L., E.Grigirova, "Energy and space-time characteristics of the strong earthquakes in Bulgaria after1900" , Izv.Geophys.Inst.BAS, V.XII, 79-107 (1968), (in Bulgarian)
Christoskov L., M.Eneva, "Relation between source length and earthquake magnitude for the Eastern Mediterranĺan and the Arabic Peninsula", BGS V.11 Nî1, 32-40 (1985), (in Bulgarian)
Yankov K., "Terrain changes caused by the earthquakes of April 14 and 18, 1928 in Southern Bulgaria", in 'The earthquakes in Bulgaria' , No29-31/1928-1930, S., 131-136 (1945), (in Bulgarian)
Not in Bulgarian
Boncev E., V.I.Bune, L.Christoskov et al., “A method for compilation of seismic zoning prognostic maps for the territory of Bulgaria”, Geologica Balcanica, Vol.12 No2, 3-48 (1982).
Brune J.N., “Seismic moment, and rate of slip along major fault zones”, J. Geophys. Res., Vol. 73, 777-784 (1968).
Brune J.N., “Tectonic stress and spectra of seismic shear waves from earthquakes”, J. Geophys. Res., Vol. 75, 4997-5009 (1970).
Chinnery M.A., “Earthquake magnitude and source parameters”, Bull. Seismol.Soc. Am., Vol. 59, 1969-1982 (1969).
Christoskov L., “Amplitude-distance curves of P, S and L waves in Central Balkans for short and medium period seismographs”, Annali di Geofisica, v.37 N3, 355-363 (1994).
Christoskov L., E.Grigorova, “On the relationship between earthquake energy and magnitude for Bulgaria”, Compt. Rend. Acad. Bulg. Sci., Vol.21 No2, 127-129 (1968).
Christov V., I.Totomanov, B.V.Vrablianski, T.Burilkov, “Map of recent vertical movements”, Proc. semin.Seismotectonic map of Balkan region, UNESCO, Skopje, 79-81 (1974).
Gutenberg B., C.F.Richter, “Magnitude and energy of earthquakes” Annali di Geofisica, Vol.9, 1-15. (1956).
Mihailovic J., “La seismicite da la Bulgarie du Sud”, Ass. Int. Seismologie, Serie B, Monographies at Travau scientifiques, Beograd, 46 p (1933).
Rangelov B., S.Rizhikova, B.Dimitrov, “Plovdiv residual deformations of the 1928 earthquakes and determination of new parameters”, Geologica Balcanica, Vol.14 No5, 67-72, (1984)
Richter Ch.F., “Elementary seismology”, W.H.Freeman and Co., San Francisco, 768 p. 1958.
Shebalin N.V. (Ed.), “Atlas of isoseismal maps”, Catalogue of earthquakes, part III, UNESCO, Skopje, 275 p. (1974).
Simeonova St., D.Solakov, C.Hristova, “An investigation on 1928 Plovdiv earthquake”, Bulg. Geophys. J., Vol.16 No2, 55-60 (1990).
Solakov D. and S.Simeonova (Eds.), “Bulgaria catalogue of earthquakes 1981-1991”, Geîphys. Inst. Bulg. Acad. Sci., Sofia, 39 p (1993).