TY  - JOUR
AU  - Reinhard Diestel
TI  - A simple existence criterion for normal spanning trees
JO  - The electronic journal of combinatorics
PY  - 2016
VL  - 23
IS  - 2
UR  - http://geodesic.mathdoc.fr/articles/10.37236/6070/
DO  - 10.37236/6070
ID  - 10_37236_6070
ER  -