TY  - JOUR
AU  - Hubert Kalf
TI  - A Limit-Point Criterion for Separated Dirac Operators and a Little Known Result on Riccati's Equation.
JO  - Mathematische Zeitschrift
PY  - 1972
SP  - 75
EP  - 82
VL  - 129
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZ_1972__129_171821/
ID  - MZ_1972__129_171821
ER  -