BibTex format
@article{Heng:2007,
author = {Heng, JYY and Pearse, DF and Thielmann, F and Lampke, T and Bismarck, A},
journal = {Composite Interfaces},
pages = {581--604},
title = {Methods to determine surface energies of natural fibres: A review},
volume = {14},
year = {2007}
}