Published in Historia naturalis bulgarica, in 2002, in volume 14, pages 29-44

Published in Historia naturalis bulgarica, in 2002, in volume 14, pages 45-65

Published in Historia naturalis bulgarica, in 2002, in volume 14, pages 67-71

Published in Historia naturalis bulgarica, in 2002, in volume 14, pages 73-78

Published in Historia naturalis bulgarica, in 2002, in volume 14, pages 109-115

Published in Historia naturalis bulgarica, in 2002, in volume 14, pages 117-121

Published in Historia naturalis bulgarica, in 2002, in volume 14, pages 123-140

Published in Historia naturalis bulgarica, in 2002, in volume 14, pages 141-144

Published in Historia naturalis bulgarica, in 2002, in volume 15, pages 5-29

Published in Historia naturalis bulgarica, in 2002, in volume 15, pages 31-40

Published in Historia naturalis bulgarica, in 2002, in volume 15, pages 41-53

Published in Historia naturalis bulgarica, in 2002, in volume 15, pages 55-72

Published in Historia Naturalis Bulgarica, in 2002, in volume 15, pages 73-78

Published in Historia naturalis bulgarica, in 2002, in volume 15, pages 79-85

Published in Historia naturalis bulgarica, in 2002, in volume 15, pages 87-88

Published in Historia naturalis bulgarica, in 2002, in volume 15, pages 89-112

Published in Historia naturalis bulgarica, in 2002, in volume 15, pages 113-126

Published in Historia naturalis bulgarica, in 2002, in volume 15, pages 127-137

Published in Historia naturalis bulgarica, in 2002, in volume 15, pages 138

Published in Historia naturalis bulgarica, in 2002, in volume 15, pages 143-146

Published in Historia naturalis bulgarica, in 2002, in volume 15, pages 147-149