@article{BNYMS_1893__3_186543,
     author = {W. Woolsey Johnson},
     title = {Gravitation and {Absolute} {Units} of {Force.}},
     journal = {Bulletin of the New York Mathematical Society},
     pages = {197--199},
     publisher = {mathdoc},
     volume = {3},
     year = {1893},
     zbl = {25.1326.02},
     url = {http://geodesic.mathdoc.fr/item/BNYMS_1893__3_186543/}
}