@book{89350,
	author = {Pavlov, Ivan Petrovich and Anrep, G. V.},
	title = {Conditioned reflexes},
	publisher = {Dover Publications},
	year = {2003},
	address = {Mineola (Nueva York, Estados Unidos)},
	url = {http://www.loc.gov/catdir/enhancements/fy0614/2003048486-d.html}
}