@article{PPN589533266+DMDLOG_0004,
     title = {Tract XXXV. Gunpowder.},
     booktitle = {Tracts on mathematical and philosophical subjects Vol. 3},
     series = {GDML\_Books},
     publisher = {Rivington [u.a.]},
     address = {London},
     year = {1812},
     pages = {153},
     url = {http://dml.mathdoc.fr/item/PPN589533266+DMDLOG_0004}
}