@article{CRMATH_2006__342_12_915_0,
     author = {Lions, Pierre-Louis and Musiela, Marek},
     title = {Convexity of solutions of parabolic equations},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {915--921},
     publisher = {Elsevier},
     volume = {342},
     number = {12},
     year = {2006},
     doi = {10.1016/j.crma.2006.02.014},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2006.02.014/}
}