document.write("«&nbsp;<a href='/news/view?id=76320'>Unselfish People Are More Likely to Wind Up With Depression</a>");document.write(" | ");document.write("<a href='/news/view?id=76322'>Variational symmetries and pluri-Lagrangian systems in classical mechanics. (arXiv:1710.01526v1 [math-ph])</a>&nbsp;»");