@article{CMH_1993__68_2_140294,
     author = {F. Pacard},
     title = {A regularity criterion for positive weak solutions of -...u = u... .},
     journal = {Commentarii mathematici Helvetici},
     pages = {73--84},
     publisher = {mathdoc},
     volume = {68},
     number = {2},
     year = {1993},
     zbl = {0799.35070},
     url = {http://geodesic.mathdoc.fr/item/CMH_1993__68_2_140294/}
}