TY - JOUR AU - N. Kh. Mesropian TI - On a cosine of the angle between the ``past" and the ``future" of the process JO - Proceedings of the Yerevan State University. Physical and mathematical sciences PY - 1988 SP - 3 EP - 7 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/UZERU_1988_2_a0/ LA - ru ID - UZERU_1988_2_a0 ER -