[INDOLOGY] Garbha upanishada

[Viktoria Lysenko]

Dear colleages, could anyone provide me with a pdf copy of the Garbha upanishada or of some other ancient Sanskrit text on embriology, if any. 

Thank you in advance!
-- 
Victoria Lysenko, dr.hab.philos.
Head, Department for Oriental philosophy studies
Institute of Philosophy, Russian Academy of Sciences
Moscow, Volkhonka, 14
Professor, Russian State University for Humanities
Russia