by Stephen R. Heller
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EPA/NIH mass spectral data base
The Beilstein Online Database
Online Searching of Stn
The Beilstein system
1978 indexes to EPA/NIH mass spectral da...
1983 cumulative indexes to EPA/NIH mass ...
Advances in Heterocyclic Chemistry
Kokuritsu Kokkai Toshokan shozō Meijiki ...
Niels Lyhne
Studies in Natural Products Chemistry
Introduction to organic chemistry