@article{JEDP_1996____A12_0, author = {Lin, Fang Hua}, title = {Rectifiability of defect measures, fundamental groups and density of {Sobolev} mappings}, journal = {Journ\'ees \'equations aux d\'eriv\'ees partielles}, eid = {12}, publisher = {Ecole polytechnique}, year = {1996}, zbl = {0871.35028}, language = {en}, url = {http://archive.numdam.org/item/JEDP_1996____A12_0/} }