APA

Xu H., Que G. & Que G.Characterization of petroporphyrins using ultraviolet-visible spectroscopy and laser desorption ionization time-of-flight mass spectrometry. : .

Chicago

Xu Hai, Que Guohe and Que Guohe.Characterization of petroporphyrins using ultraviolet-visible spectroscopy and laser desorption ionization time-of-flight mass spectrometry. : .

Harvard

Xu H., Que G. and Que G.Characterization of petroporphyrins using ultraviolet-visible spectroscopy and laser desorption ionization time-of-flight mass spectrometry. : .

MLA

Xu Hai, Que Guohe and Que Guohe.: . .