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3. Sh. A. Ayupov, “Ergodic theorems in Jordan algebras of measurable elements,” An. Univ. Craiova.Mat. Fiz.-Chim., 9, 22–28 (1981).
4. Sh. A. Ayupov, “Martingale convergence and strong laws of large numbers in Jordan algebras,” An. Univ. Craiova.Mat. Fiz.-Chim., 9, 29–34 (1981).
5. Sh. A. Ayupov, “Statistical ergodic theorems in Jordan algebras,” Russian Math. Surveys, 36(6), 169–170 (1981) [UspekhiMat. Nauk, 36 (6), 201–202 (1981)].