@article{PPN588886025+DMDLOG_0016,
     title = {Chapter XII. Application of the calculus of variantions to problems of maxima and minima.},
     booktitle = {Integral Calculus, and Calculus of Variations Vol. II},
     series = {GDML\_Books},
     publisher = {UP},
     address = {Oxford},
     year = {1854},
     pages = {267},
     url = {http://dml.mathdoc.fr/item/PPN588886025+DMDLOG_0016}
}