TY - JOUR AU - E. G. Goluzina TI - On the value regions of systems $\{f(z_1),f'(z_1)\}$ and $\{f(z_1),f(z_2)\}$ in the class of typically real functions JO - Zapiski Nauchnykh Seminarov POMI PY - 1998 SP - 65 EP - 75 VL - 254 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_1998_254_a3/ LA - ru ID - ZNSL_1998_254_a3 ER -