Contents of Vol. 12, No. 2                                 DOI: 10.5644/SJM.12.2.00

This issue is dedicated to the memory of Professor Mahmut Bajraktarević
on the occasion of the 30th anniversary of his death
 Mirjana Vuković and Fikret Vajzović Remembering Academician Mahmut Bajraktarević 143-150 Mirna Džamonja Universal infinite clique-omitting graphs 151-154 Daniel A. Romano An introduction to implicative semigroups with apartness 155-165 Metіn Başarіr, Feyzі Başar and Emrah Evren Kara On the spaces of Fibonacci difference absolutely p-summable, null and convergent sequences 167-182 Nasr A. Zeyada and Amr K. Amin Aspects of weak, s-CS and almost injective rings 183-192 A. Barbir, K. Krulić Himmelreich and J. Pečarić General Opial type inequality for quotient of functions 193-204 Wenchang Chu and Nadia N. Li Nonterminating extensions of the Sears transformation 205-215 Mehmed Nurkanović and Zehra Nurkanović Birkhoff normal forms, KAM theory, periodicity and symmetries for certain rational difference equation with cubic terms 217-231 M.R.S. Kulenović and E. Pilav Asymptotic approximations of the stable and unstable manifold of the fixed point of a certain rational map by using functional equations 233-250 Tuğba Yurdakadim and Leila Miller-Van Wieren Subsequential results on uniform statistical convergence 251-259 Harry I. Miller Statistical cluster points of subsequences of double sequences 261-266 M. Vuković, E. Ilić-Georgijević and O. Stevanović On an application of Parseval's formula to problems of $\raisebox{-1mm}{G^\varkappa_\theta}$-summability of eigenfunction expansion of the Laplacian operator 267-276