Joutsiniemi K.; Vainiotalo P.; Lázár László; Fülöp Ferenc; Bernáth Gábor: Saturated heterocycles .227. Electron ionization mass spectra of some substituted stereoisomeric 1,6,7,11b‐tetrahydro‐2h,4H[1,3]oxazino[4,3‐a]‐isoquinolines and 1,6,7,11b‐tetrahydro‐2H[1,3]oxazino [4,3‐a]‐isoquinolin‐4‐ones.
RAPID COMMUNICATIONS IN MASS SPECTROMETRY, 9 (11). pp. 998-1002. ISSN 0951-4198 (1995)