@misc{indiciae4489563c8cc6, title = {Control of time variable, nonlinear multivariable systems using Liapunov's direct method}, author = {Lindorff, D. P. and Monopoli, R. V.}, year = {1966}, url = {https://ntrs.nasa.gov/citations/19660009168}, note = {Source identifier: 19660009168} }