TY - JOUR AU - O. N. Gadomsky AU - T. T. Idiatullov TI - Parapositronium atom in the field of annihilation and optical photons as a nonlinear quantum system JO - Teoretičeskaâ i matematičeskaâ fizika PY - 2000 SP - 148 EP - 168 VL - 124 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_2000_124_1_a9/ LA - ru ID - TMF_2000_124_1_a9 ER -