Maki Esa; Pihlaja Kalevi; Huber Imre; Fülöp Ferenc; Bernáth Gábor; Vainiotalo Pirjo: Electron impact ionization mass spectra of some substituted dipyrido[1,2-a:4,3-d]pyrimidinones.
ORGANIC MASS SPECTROMETRY, 28 (1). pp. 18-22. ISSN 0030-493X (1993)