Romanov Yu I

Publications in Math-Net.Ru

1. Comparison of the strength of certain $\Delta\Sigma$-operations in connection with the generalization of certain multiple separability theorems.
   
   Izv. Vyssh. Uchebn. Zaved. Mat., 1968, no. 3,  80–85
2. On the set of $M_{\alpha+1}$-countably-valued points of the operation $\Phi_{M_{\alpha+}1}=R_N^\alpha$
   
   Izv. Vyssh. Uchebn. Zaved. Mat., 1967, no. 5,  91–100