A limit theorem for branching processes with variable-regime immigration (critical case)
English version (Springer): Ukrainian Mathematical Journal 30 (1978), no. 6, pp 607-609.
Citation Example: Boiko R. V. A limit theorem for branching processes with variable-regime immigration (critical case) // Ukr. Mat. Zh. - 1978. - 30, № 6. - pp. 806–809.
Full text