@article{10_1017_S0017089507003382,
     author = {CORSON, JON and RYANG, DOHYOUNG},
     title = {ISOPERIMETRIC {FUNCTIONS} {OF} {GROUPS} {ACTING} {ON} {L\ensuremath{\delta}-SPACES}},
     journal = {Glasgow mathematical journal},
     pages = {23--28},
     year = {2007},
     volume = {49},
     number = {1},
     doi = {10.1017/S0017089507003382},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089507003382/}
}