BibTex format
@book{Astolfi:2003,
author = {Astolfi, A and Gordillo, F and Schaft, AJ},
publisher = {Elsevier},
title = {Lagrangian and Hamiltonian methods for nonlinear control: a proceedings volume from the 2nd IFAC Workshop, Seville, Spain, 3-5 April, 2003},
year = {2003}
}