@article{AIHPB_2007__43_6_717_0,
     author = {Enriquez, Nathana\"el},
     title = {An invariance principle for {Az\'ema} martingales},
     journal = {Annales de l'I.H.P. Probabilit\'es et statistiques},
     pages = {717--727},
     publisher = {Elsevier},
     volume = {43},
     number = {6},
     year = {2007},
     doi = {10.1016/j.anihpb.2006.10.001},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.anihpb.2006.10.001/}
}