TY  - JOUR
AU  - P. R. Halmos
TI  - BDF or the infinite principal axis theorem
JO  - Mathematica Applicanda
PY  - 1986
SP  -  5
EP  - 19
VL  - 14
IS  - 27
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.14708/ma.v14i27.1662/
DO  - 10.14708/ma.v14i27.1662
LA  - pl
ID  - 10_14708_ma_v14i27_1662
ER  -