Report a problem related to object: Badania w dziedzinie pochodnych 1,2,4-triazolotionu-5. IV. Acylowanie pochodnych 1,2,4-triazolotionu-5 = Issledovaniâ v oblasti proizvodnyh 1,2,4-triazoltiona-5. IV. Acilirovanieproizvodnyh 1,2,4-triazoltiona-5 = Studies on 1,2,4-Triazolethion-5 derivatives. IV. The Acylation of 1,2,4-Triazolethion-5 derivatives /