TY - JOUR AU - E. V. Shchepin TI - On the bicompact Ponomarev--Zaitsev extension and the so-called spectral parasite JO - Sbornik. Mathematics PY - 1972 SP - 317 EP - 326 VL - 17 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_1972_17_2_a10/ LA - en ID - SM_1972_17_2_a10 ER -