@article{Sra2012_3, title = {Fast projection onto mixed-norm balls with applications}, author = {Sra, S.}, journal = {Minining and Knowledge Discovery (DMKD)}, volume = {25}, number = {2}, pages = {358--377}, month = sep, year = {2012}, doi = {10.1007/s10618-012-0277-7}, month_numeric = {9} }