H. Pfeifer

发表

A short history of nuclear magnetic resonance spectroscopy and of its early years in Germany

H. Pfeifer, 1999 .

A taxonomic revision of the pentandrous species of Aristolochia

H. Pfeifer, 1970 .

Revision of the North and Central American Hexandrous Species of Aristolochia (Aristolochiaceae)

H. Pfeifer, 1966 .