TY - JOUR AU - Yano, Kentaro AU - Hiramatu, Hitosi TI - On the projective geometry of $K$-spreads JO - Compositio Mathematica PY - 1952 DA - 1952/// SP - 286 EP - 296 VL - 10 PB - Kraus Reprint UR - http://www.numdam.org/item/CM_1952__10__286_0/ UR - https://zbmath.org/?q=an%3A0048.16101 UR - https://www.ams.org/mathscinet-getitem?mr=53589 LA - en ID - CM_1952__10__286_0 ER -