TY  - JOUR
T1  - On Certain Parts of the Theory of Railways; with an Investigation of the Formulae Necessary for the Determination of the Resistances to the Motion of Carriages upon Them, and of the Power Necessary to Work Them. 
JF  - Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London (1800-1843)
VL  - 3
SP  - 385
EP  - 388
PY  - 1830/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1830.0237
M3  - doi:10.1098/rspl.1830.0237
AU  - Lardner, D.
ER  -