@article{MZ_1929__29_168066,
     author = {Rosalind Cecily Young},
     title = {On {Riemann} integration with respect to a continuos increment.},
     journal = {Mathematische Zeitschrift},
     pages = {217--233},
     publisher = {mathdoc},
     volume = {29},
     year = {1929},
     zbl = {54.0273.03},
     url = {http://geodesic.mathdoc.fr/item/MZ_1929__29_168066/}
}