In heterocyclic chemistry, prospect and

Katritzky, A. R., Drum, C., Advances in Heterocyclic Chemistry Prospect and Retrospect, 40, 1. 

Katiitzky, A. R., Drum, C., Advances in Heterocyclic Chemistry Prospect and Retrospect, 40,1. Katiitzky, A. R., Jones, P. M., The Literature cf Heterocyclic Chemistry, Part II, 25, 303. Katiitzky, A. R., Lagowski, J. M., Prototropic Tautomerism qF Heteroaromatic Compounds. I. General Discussion and Methods cf Study, 1,311 //. Six-Membered Rings, I, 339 III. Five-Membered Rings and One Hetero Atom, 2, 1 IV. Five-Membered Rings with Two or More Hetero Atoms. 2,27. 

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