@article{10_4064_ap101_2_1,
     author = {Tomasz Lenarcik},
     title = {Linear systems over $\mathbb P^1\times\mathbb P^1$ with base
points of multiplicity bounded by three},
     journal = {Annales Polonici Mathematici},
     pages = {105--122},
     publisher = {mathdoc},
     volume = {101},
     number = {2},
     year = {2011},
     doi = {10.4064/ap101-2-1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap101-2-1/}
}