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Historical Photos. 2013-11-24.
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Shperk, "The
History of Fortification" (В. Ф. Шперк, История фортификации) (1957)...
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Antiquity into the 20th century. Moscow, Prosvescheniye, 1976. (in Russian) V.F.
Shperk, "The
History of Fortification" (В. Ф. Шперк, История фортификации Archived...
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Pavlov Science Library headed by V.G.Ushakov
Syphilidology headed by E.F.
Shperk Vaccination Department headed by V.A.Krayushkin "Organization of the Institute:...
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brasiliense A.B. Joly, 1957
Ceramium breviarticulatum pellucidum Shperk Ceramium breviarticulatum Shperk Ceramium brevizonatum caraibi**** H.E.Petersen & B¿rgesen...
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Foslie Ceramium diaphanum pilosum (Roth) C.Agardh
Ceramium diaphanum pulcher Shperk Ceramium diaphanum radiculosum (Grunow) H.E.Petersen
Ceramium diaphanum...
- Notaris, 1842
Laurencia botrychioides Harvey, 1855
Laurencia botryocarpa Shperk, 1869
Laurencia botryoides (C.Agardh) Gaillon, 1828
Laurencia brachyclados...
