document.write("« A Review on Bilevel Optimization: From Classical to Evolutionary Approaches and Applications. (arXiv:1705.06270v1 [math.OC])");document.write(" | ");document.write("A Variational Reconstruction Method for Undersampled Dynamic X-ray Tomography based on Physical Motion Models. (arXiv:1705.06079v1 [math.NA]) »");