TY  - JOUR
A1  - Colonius, Fritz
T1  - On approximate and exact null controllability of delay systems
T2  - Systems & Control Letters
KW  - Control and Systems Engineering
KW  - Mechanical Engineering
KW  - Electrical and Electronic Engineering
KW  - General Computer Science
Y1  - 1984
UR  - https://opus.bibliothek.uni-augsburg.de/opus4/frontdoor/index/index/docId/71350
UR  - https://nbn-resolving.org/urn:nbn:de:bvb:384-opus4-713507
SN  - 0167-6911
VL  - 5
IS  - 3
SP  - 209
EP  - 211
PB  - Elsevier BV
ER  -