@article {6213546,
	title = {AC Drive Observability Analysis},
	journal = {Industrial Electronics, IEEE Transactions on},
	volume = {60},
	number = {8},
	year = {2013},
	month = {August},
	pages = {3047-3059},
	keywords = {Computational modeling, Equations, Induction machine, Induction machines, Mathematical model, nonlinear system, Observability, Rotors, Stators, synchronous machine},
	issn = {0278-0046},
	doi = {10.1109/TIE.2012.2203775},
	author = {Pavel V{\'a}clavek and Petr Blaha and Herman, Ivo}
}