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5Pyrolyse von Maleins??urehydrazid und Hydrazin, Zeitschrift f??r Lebensmittel-Untersuchung und Forschung Addition of cyclic amines to ??,??-unsaturated acids via the aza-Michael reaction, Russian Journal of General Chemistry Catalytic addition of pyrazoles to but-3-enenitrile, Russian Journal of General Chemistry