@article{1077311041,
author = {Renggli, H.},
title = {Structural instability and extensions of Riemann surfaces},
journal = {Duke Math. J.},
volume = {42},
number = {1},
year = {1975},
pages = { 211-224},
language = {en},
url = {http://dml.mathdoc.fr/item/1077311041}
}
Renggli, H. Structural instability and extensions of Riemann surfaces. Duke Math. J., Tome 42 (1975) no. 1, pp. 211-224. http://gdmltest.u-ga.fr/item/1077311041/