@article{CMH_1990__65_3_140205,
     author = {Burton Randol},
     title = {A relationship between volume, injectivity radius, and eigenvalues.},
     journal = {Commentarii mathematici Helvetici},
     pages = {448--453},
     year = {1990},
     volume = {65},
     number = {3},
     zbl = {0724.58062},
     url = {http://geodesic.mathdoc.fr/item/CMH_1990__65_3_140205/}
}