[Jerzy Andrzej Helwig (1666-1748) 300th-anniversary of his birth].
D049670:History, 17th Century; D049671:History, 18th Century; D008517:Phytotherapy / Q000266:history*; D011044:Poland
Jerzy Andrzej Helwing (1666-1748) w trzechsetna rocznice urodzin.