@article{CM_1995__99_3_213_0,
     author = {Gurjar, R. V. and Parameswaran, A. J.},
     title = {Open surfaces with non-positive {Euler} characteristic},
     journal = {Compositio Mathematica},
     pages = {213--229},
     publisher = {Kluwer Academic Publishers},
     volume = {99},
     number = {3},
     year = {1995},
     mrnumber = {1361739},
     zbl = {0849.14013},
     language = {en},
     url = {http://www.numdam.org/item/CM_1995__99_3_213_0/}
}