@incollection{JEDP_1996____A12_0,
     author = {Lin, Fang Hua},
     title = {Rectifiability of defect measures, fundamental groups and density of {Sobolev} mappings},
     booktitle = {},
     series = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     eid = {12},
     pages = {1--14},
     publisher = {Ecole polytechnique},
     year = {1996},
     zbl = {0871.35028},
     language = {en},
     url = {http://archive.numdam.org/item/JEDP_1996____A12_0/}
}