@article{THSP_2008_14_2_a13,
     author = {Josep Llu{\'\i}s Sol\'e and Frederic Utzet},
     title = {A family of martingales generated by
},
     journal = {Teori\^a slu\v{c}ajnyh processov},
     pages = {139--144},
     publisher = {mathdoc},
     volume = {14},
     number = {2},
     year = {2008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/THSP_2008_14_2_a13/}
}