
Lazarov, S. 1998. A contribution to the study of the spiders (Araneae) in Sushtinska Sredna Gora Mountain, Bulgaria. — Hist. nat. bulg., 9: 27—34.
Dimitrov, D., Lazarov, S. 1999. Two new species of Harpactea from Bulgaria (Araneae: Dysderidae). — Ber. nat.-med. Verein. Innsbruck, 86: 127—129.
Petrov, B., Lazarov, S. 2000. Steatoda triangulosa (Walckenaer, 1802) Feeding on a European Blind Snake. — Newsl. Br. arachnol. Soc., 88: 9—10.
Blagoev, G., Lazarov, S., Deltshev, C. 2001 [Spiders (Araneae) in Kresna Gorge]. — P. Beron (Ed.): Biodiversity of Kresna Gorge (SW Bulgaria), 85—102.
Lazarov, S., Deltshev, C., Blagoev, G. 2001. The Spiders (Araneae) of Sashtinska Sredna Gora Mountain (Bulgaria). Faunistic and Zoogeographical Analysis. — Acta zool. bulg., 53 (1): 3—28 [PDF].
Tzonev, G., Lazarov, S. 2001. A Contribution to the Study of Spiders (Araneae) in Osogovo Mountain, South-West Bulgaria. — Acta zool. bulg., 53 (2): 67—78 [PDF].
Blagoev, G., Deltshev, C. & Lazarov, S. 2002. The Spiders (Araneae) of Bulgaria. — Institute of Zoology, Bulgarian Academy of Sciences, http://cl.bas.bg/bulgarianspiders/.
Dimitrov, D. & Lazarov, S. 2002. A Contribution to the Study of the Spiders (Araneae) in Chepun Mountain and Dragoman Swampland (NW Bulgaria). — Acta zool. bulg., 54 (2): 47—53 [PDF].
Lazarov, S. 2002. A review of the family Dysderidae (Araneae) in Bulgaria faunistic and zoogeographical analysis. — European Arachnology 2002. Proceedings of the 20th European Colloquium of Arachnology, Szombathely 22—26 July 2002): 259—265 [PDF].
Deltshev, C., Lazarov, S. & Petrov, B. 2003. A Contribution to the Study of Spiders (Araneae) from the Caves of Bulgaria. — Acta zool. bulg., 55 (2): 9—28 [PDF].
Antov, A., Deltshev, C., Lazarov, S. & Blagoev, G. 2004. A Faunistic and Zoogeographical Analysis. — In: Penev, L. et al (Eds), Ecology of the City of Sofia: 355—363.
Deltshev, C., Lazarov, S., & Blagoev, G. 2004. Spiders (Araneae) from Eastern Rhodopy Mountains (Bulgaria, Greece). — In: Beron P., Popov A. (Eds). Biodiversity of Bulgaria. 2. Biodiversity of Eastern Rhodopes. (Bulgaria and Greece). Pensoft & Nat. Mus. Natur. Hist., Sofia, 181—198 [PDF].
Lazarov, S. 2004. A Contribution to the Study of Spiders (Araneae) in Macedonia. — Acta zool. bulg., 56 (2): 155—166 [PDF].
Lazarov, S. 2005. A new species from Bulgaria, Brachythele langourovi sp. n. (Araneae, Nemesiidae). — Revue suisse de Zoologie, 112 (1): 189—193 [PDF].
Lazarov, S. 2005. Spiders (Araneae) from Maquises in SW Bulgaria — Part I. — Acta zool. bulg., 57 (2): 145—152 [PDF].
Lazarov, S. 2006. A new spider species from Bulgaria, Harpactea alexandrae sp. n. (Araneae, Dysderidae). — Acta zool. bulg., 58 (1): 13—16 [PDF].
Lazarov, S. 2006. A new spider species from Bulgaria, Harpactea samuili sp. n. (Araneae, Dysderidae). — In: European Arachnology 2005 (Deltshev, C. & Stoev, P., eds), Acta zool. bulg., Suppl. 1: 81—85 [PDF]
Deltshev, C., Lazarov, S. & Stojkoska E. 2007. A Contribution to the Study of Spiders from the Caves of Republic Macedonia (Araneae). — Acta zool. bulg., 59 (3): 337—340 [PDF].
Lazarov, S. 2007. Fauna and zoogeograpy of Haplogynae spiders (Araneae) in Bulgaria. — In: Fet, V., Popov A. (Eds). Biogeography and Ecology of Bulgaria, Springer: 481—490.
Lazarov, S. 2007. New Data on the distribution of Harpactea srednogora Dimitrov & Lazarov 1999 in Bulgaria with description of female (Araneae: Dysderidae). — Hist. nat. bulg., 18: 29—33 [PDF].
Lazarov, S. 2007. Spiders (Araneae) from Maleshevska Mountain (SW Bulgaria) — Part I. — Acta zool. bulg., 59 (2): 133—144 [PDF].
Lazarov, S. & Deltshev, C. 2008. New data for Harpactea sanctaeinsulae Brignoli, 1978 and description of the unknown female (Araneae, Dysderidae). — Turkish Journal of Arachnology, 1 (1): 67—69 [PDF].
Lazarov, S. 2008. A Record of Dysdera tartarica Kroneberg, 1875 with Description of its Unknown Female (Araneae, Dysderidae). — Turkish Journal of Arachnology, 1 (2): 104—106 [PDF].
Lazarov, S. 2008. A New Spider Species from Bulgaria, Harpactea kubrati sp. n. (Araneae, Dysderidae). — Acta zool. bulg., 60 (2): 219—221 [PDF].
Lazarov, S. 2008. A new spider species, Harpactea asparuhi sp. n., from Bulgaria (Araneae: Dysderidae). — Revista Iberica de Arachnologia (Proceedinngs 23rd ECA), Vol. 15: 25—27 [PDF].
Naumova, M., Deltshev, C., Blagoev, G. & Lazarov, S. 2008. Spiders (Araneae) from Lyulin Mountain (W Bulgaria). — Acta zool. bulg., 60 (3): 267—276 [PDF].
Stefanovska, D., Naumova, M., Deltshev, C. & Lazarov, S. 2008. Spiders from the Skopje Region. A Faunistic and Zoogeographical Analysis. — Hist. nat. bulg., 19: 35—49 [PDF].
Lazarov, S. 2009. A New Spiders Species From Bulgaria Harpactea terveli sp. n. (Araneae, Dysderidae). — International Journal of Academic Research, 1 (2): 96—98 [PDF].
Lazarov, S. 2009. Harpactea konradi, a new spider species from Bulgaria, (Araneae, Dysderidae). — Zootaxa, 2140: 33—37 [PDF].
Lazarov, S. 2009. Spiders (Araneae) from Maquises in SW Bulgaria — Part II. — Acta zool. bulg., 61 (1): 33—37 [PDF].
Stoev, P., Popov, A., Blagoev, G. & Lazarov, S. 2009. Fifty years of devotion to spiders: a concise biography of Christo Deltshev, with a complete list of his publications and described taxa. — ZooKeys, 16: 1—26 [PDF].
Lazarov, S. 2010. A new spider species from Bulgaria, Harpactea krumi sp. n. (Araneae, Dysderidae). — Acta zool. bulg., 62 (1): 27—31 [PDF].
Lazarov, S. 2010. Description of the female of Dysderocrates silvestris Deelman-Reinold, 1988 with new data on its distribution in the Balkan Peninsula (Araneae: Dysderidae). — Revista Iberica de Arachnologia, Vol. 18: 111—113 [PDF].
Lazarov, S. & Naumova, M. 2010. Two new species of Harpactea from Bulgaria (Araneae: Dysderidae). — Revue suisse de Zoologie, 117 (1): 101—110 [PDF].
Deltshev, C., Lazarov, S., Naumova, M. & Stoev, P. 2011. A survey of spiders (Araneae) inhabiting the euedaphic soil stratum and the superficial underground compartment in Bulgaria. — Arachnologische Mitteilungen, 40: 33—46 [PDF].