@incollection{MSMF_1979__60__87_0,
     author = {Jouron, C.},
     title = {On some structural design problems},
     booktitle = {Analyse non convexe (Pau, 1977)},
     series = {M\'emoires de la Soci\'et\'e Math\'ematique de France},
     pages = {87--93},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {60},
     year = {1979},
     doi = {10.24033/msmf.262},
     mrnumber = {81a:73037},
     zbl = {0426.73056},
     url = {http://www.numdam.org/articles/10.24033/msmf.262/}
}