TY - JOUR AU - V. G. Safonov TI - On the existence of minimal $\tau$-closed totally saturated non-$\mathfrak H$-formations JO - Trudy Instituta matematiki PY - 2008 SP - 67 EP - 72 VL - 16 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TIMB_2008_16_1_a11/ LA - ru ID - TIMB_2008_16_1_a11 ER -