@incollection{AST_1987__154-155__307_0,
     author = {Taylor, J. E.},
     title = {Some crystalline variational techniques and results},
     booktitle = {Th\'eorie des vari\'et\'es minimales et applications},
     series = {Ast\'erisque},
     pages = {307--320},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {154-155},
     year = {1987},
     mrnumber = {955071},
     zbl = {0635.53046},
     language = {en},
     url = {http://archive.numdam.org/item/AST_1987__154-155__307_0/}
}