TY  - JOUR
PB  - American Physical Society
ID  - 10.1103/Physics.5.98
TI  - Some Communities Dependent upon Few Species
JF  - Physics
JA  - Physics
J1  - PHYSICS
VL  - 5
IS  - 
SP  - 98
EP  - 
PY  - 2012/08/31/
UR  - http://link.aps.org/doi/10.1103/Physics.5.98
A1  - Ball, Philip
ER  -