Collect. Czech. Chem. Commun.
     1975, 40, 2632-2641
  https://doi.org/10.1135/cccc19752632
  
Mass spectra of N-substituted 2,4,4,6-tetramethyl-3,5-dicyano-1,4-dihydropyridines
J. Paleček and J. Kuthan
First page
 
    
      Collect. Czech. Chem. Commun.
     1975, 40, 2632-2641
  https://doi.org/10.1135/cccc19752632
  
