TY  - JOUR
AU  - Pták, Vlastimil
TI  - Simultaneous extensions of two functionals
JO  - Czechoslovak Mathematical Journal
PY  - 1969
SP  - 553
EP  - 566
VL  - 19
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1969.100922/
DO  - 10.21136/CMJ.1969.100922
LA  - en
ID  - 10_21136_CMJ_1969_100922
ER  -