@book{31390,
	author = {Lu Y.},
	title = {Intrinsically microporous polyimides derived from norbornane-2-spiro-?-cyclopentanone-??-spiro-2?-norbornane-5,5?,6,6?-tetracarboxylic dianhydride},
	series = {Polymer. 228, 123955, 2021, DOI: 10.1016/j.polymer.2021.123955},
	url = {https://drive.google.com/file/d/1ymuWioxyN0IVCTaH905zXc-R7z2cwb8h/view?usp=drive_link}
}