Published in Historia naturalis bulgarica, in 1990, in volume 2, pages 3-6

Created: 2016-09-16, modified: 2016-09-16

Published in Historia Naturalis Bulgarica, in 1990, in volume 2, pages 36-60

Created: 2012-04-02, modified: 2012-04-02

Published in Historia naturalis bulgarica, in 1990, in volume 2, pages 61-63

Created: 2016-09-16, modified: 2016-09-16

Published in Historia naturalis bulgarica, in 1990, in volume 2, pages 64-66

Created: 2016-09-16, modified: 2016-09-16