@book{93631,
	author = {Chica Escobar, Jaime. and Quintana Ávila, Hernando Manuel,},
	title = {La ecuación general de segundo grado en dos y tres variables /},
	publisher = {Instituto Tecnológico Metropolitano,},
	year = {2019.},
	series = {Textos académicos},
	address = {Medellín :},
	url = {https://elibro.net/ereader/politecnicointernacional/105715}
}