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@article{MZM_1993_54_2_a11, author = {V. G. Tkachev}, title = {A sharp lower bound for the first eigenvalue on a minimal surface}, journal = {Matemati\v{c}eskie zametki}, pages = {99--107}, publisher = {mathdoc}, volume = {54}, number = {2}, year = {1993}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1993_54_2_a11/} }
V. G. Tkachev. A sharp lower bound for the first eigenvalue on a minimal surface. Matematičeskie zametki, Tome 54 (1993) no. 2, pp. 99-107. http://geodesic.mathdoc.fr/item/MZM_1993_54_2_a11/