Ayala Ziv, Alina Grego, Sivil Kopilevich, Leila Zeiri, Pere Miro, Carles Bo, Achim Müller, Ira A. Weinstock,
Flexible pores of a metal oxide-based capsule permit entry of comparatively larger organic guests. Journal of the American Chemical Society. ,vol. 131, pp. 6380- 6382 ,(2009) ,
10.1021/JA900452D