@article{EJDE_2005__2005__a199,
     author = {Sun,  Jianzhong},
     title = {An equation for the limit state of a superconductor with pinning sites},
     journal = {Electronic journal of differential equations},
     year = {2005},
     volume = {2005},
     zbl = {1134.35395},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2005__2005__a199/}
}