@article{MM2_1988__62_3_155343,
     author = {M. Andreatta and E. Ballico},
     title = {On the adjunction process over a surface in char p.},
     journal = {Manuscripta mathematica},
     pages = {227--244},
     publisher = {mathdoc},
     volume = {62},
     number = {3},
     year = {1988},
     zbl = {0698.14034},
     url = {http://geodesic.mathdoc.fr/item/MM2_1988__62_3_155343/}
}