@article{10_1017_S0017089500030123,
     author = {Wu, Q.S. and Zhang, J. J.},
     title = {Graded rings ofcohomological dimension 2},
     journal = {Glasgow mathematical journal},
     pages = {455--468},
     year = {2000},
     volume = {42},
     number = {3},
     doi = {10.1017/S0017089500030123},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500030123/}
}