@article{PPN623962659+DMDLOG_0004,
     title = {Book IV.},
     booktitle = {Mathematical physics, or the mathematical principles of natural philosophy Vol. 2},
     series = {GDML\_Books},
     publisher = {Whittaker},
     address = {London},
     year = {1847},
     pages = {231},
     url = {http://dml.mathdoc.fr/item/PPN623962659+DMDLOG_0004}
}