Vol 61, No 2 (2025)

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Issue	Section	Title	File
Vol 59, No 7 (2023)	Articles	Mass Spectra of New Heterocycles: XXVI. Electron Impact and Chemical Ionization Study of N-[5-Amino-2-thienyl]- and N-[2-(Methylsulfanyl)-1,3-thiazol-5-yl]isothioureas
Vol 59, No 5 (2023)	Articles	Mass-spectra of new heterocycles: XXV. electron impact study of N-[5-amino-2-thienyl]thioureas
Vol 59, No 1 (2023)	Articles	Mass-spectra of new heterocycles: XXIV. Electron impact and chemical ionization study of N-[3-alkoxyand 3-(1H-pyrrol-1-yl)-2-thienyl]imidothiocarbamates