@article{10_4064_ba52_3_4,
     author = {Serguei A. Nazarov and Jan Soko{\l}owski},
     title = {Selfadjoint {Extensions} for the {Elasticity} {System
} in {Shape} {Optimization}},
     journal = {Bulletin of the Polish Academy of Sciences. Mathematics},
     pages = {237--248},
     publisher = {mathdoc},
     volume = {52},
     number = {3},
     year = {2004},
     doi = {10.4064/ba52-3-4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ba52-3-4/}
}