Ekaterina Zekavitca

title	ISBN-13 (ISBN-10)	year of publication
Beskonechnye istorii	978-5-905447-02-0 (5-905447-02-0)	2011
Geometriya v prirode. Knizhka-igrushka	978-5-905447-01-3 (5-905447-01-2)	2011