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{"http://solidmechanics.org/text/Chapter5_7/Chapter5_7.htm","http://homepages.engineering.auckland.ac.nz/~pkel015/SolidMechanicsBooks/Part_I/BookSM_Part_I/08_Energy/08_Energy_02_Elastic_Strain_Energy.pdf","http://en.wikipedia.org/wiki/Contact_mechanics","http://www.agros2d.org/","http://www.agros2d.org/video-tutorial/"}

{"http://www.google.cz/books?hl=cs&lr=&id=5cZFRwLuhdQC&oi=fnd&pg=PA1&dq=wave+mode+solids+elasticity&ots=-MPGL__Iry&sig=5qFzuL4r9eH5JZPZbqioP-B81VQ&redir_esc=y#v=onepage&q=wave%20mode%20solids%20elasticity&f=false"}

{"http://journals.aps.org/pr/abstract/10.1103/PhysRev.63.46","http://books.google.cz/books?id=5cZFRwLuhdQC&pg=PA440&lpg=PA440&dq=wave+mode+solids+elasticity&source=bl&ots=-MPGK-1Ory&sig=bAJgPbEcdcZAI2nMXQWYc87zzZc&hl=cs&sa=X&ei=2rJ_U5y6J6nR7Abs5ICoCg&sqi=2&ved=0CGwQ6AEwBw#v=onepage&q=wave%20mode%20solids%20elasticity&f=false",""}

{"http://hep.ph.liv.ac.uk/~hutchcroft/Phys258/CN3Elastic.pdf","vztah 3.14, coz je hezke, dulezite je vyuzit P(podelny, zvuk) a S(pricne) waves, podil 3.14/3.18, moooc zajimave, rychle akcelerometry pro urceni poissona bez E /ci Y/","http://en.wikipedia.org/wiki/S-Wave"}