Gaya APA

Zhu, Y. et al (2009). Three-dimensional photonic bandgap crystals of titania hollow spheres at visible wavelengths . New York: Springer-Verlag.

Gaya MLA

Zhu, Yongzheng. et al. "Three-dimensional photonic bandgap crystals of titania hollow spheres at visible wavelengths". New York: Springer-Verlag, 2009. e-journal.