@article{10_4153_CJM_2005_029_3,
     author = {Purnaprajna, B. P.},
     title = {Some {Results} on {Surfaces} of {General} {Type}},
     journal = {Canadian journal of mathematics},
     pages = {724--749},
     year = {2005},
     volume = {57},
     number = {4},
     doi = {10.4153/CJM-2005-029-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-2005-029-3/}
}