TY  - JOUR
AU  - Tuomo Valkonen
TI  - Optimal transportation networks and stations
JO  - Interfaces and free boundaries
PY  - 2009
SP  - 569
EP  - 597
VL  - 11
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.4171/ifb/223/
DO  - 10.4171/ifb/223
ID  - 10_4171_ifb_223
ER  -