TY - JOUR AU - V. R. Khalilov TI - A $2+1$-dimensional fermion in the Coulomb and magnetic field backgrounds JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1999 SP - 105 EP - 118 VL - 119 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_1999_119_1_a8/ LA - ru ID - TMF_1999_119_1_a8 ER -