The book examines the tremendous development and progress of zoology in the 20th century. It traces the most important achievements in many branches of the vast field of zoological science—systematics ...
This work aims, as far as possible, to provide such a summary. The available information has been synthesized as fully as possible in the presentation of the individual species, and the summaries conc ...
This volume on Bulgarian coastal flies consists of the parts accepted for publication in Fauna of Bulgaria: a general section with morphological notes, more or less valid for all three families; data ...
The monograph includes a description of 100 freshwater crustaceans from the order Harpacticoida (Copepoda) from the surface and underground waters of Bulgaria. The described species belong to 14 famil ...
The present book is aimed at summarizing the most of the studies have been carried out during the last two decades on the ecosystems of the lake Srebarna – the most prominent Bulgarian Nature Reserve ...
The book contains rich information about karst and caves in all countries around the world, including the longest, deepest, and most interesting ones. It reviews the main studies (with relevant litera ...