TY  - JOUR
AU  - Lassak, Marek
TI  - A general notion of extreme subset
JO  - Compositio Mathematica
PY  - 1986
SP  - 61
EP  - 72
VL  - 57
IS  - 1
PB  - Martinus Nijhoff Publishers
UR  - http://www.numdam.org/item/CM_1986__57_1_61_0/
LA  - en
ID  - CM_1986__57_1_61_0
ER  -