TY  - BOOK
AU  - Brownstein,S
AU  - Roovers,J
TI  - Calculation of barriers to rotation in PEEK and some of its substituted derivatives
UR  - https://drive.google.com/file/d/1AqXUROv3L1QRCCOIfLoHBr5IXL0rg1yR/view?usp=drivesdk
ER  -