@article{MS2_1969__24_166081,
     author = {K. Murali Rao},
     title = {Quasi-Martingales.},
     journal = {Mathematica Scandinavica},
     pages = {79--92},
     publisher = {mathdoc},
     volume = {24},
     year = {1969},
     zbl = {0193.45502},
     url = {http://geodesic.mathdoc.fr/item/MS2_1969__24_166081/}
}