@article{paperid:1059714,
author = {Akbarzadeh Khorshidi, Majid and Shariati, Mahmoud},
title = {Free vibration analysis of sigmoid functionally graded nanobeams based on a modified couple stress theory with general shear deformation theory},
journal = {Journal of the Brazilian Society of Mechanical Sciences and Engineering},
year = {2016},
volume = {38},
number = {8},
month = {July},
issn = {1678-5878},
pages = {2607--2619},
			numpages = {12},
keywords = {Nanostructures  Smart materials  Vibration 
Modified couple stress theory},
}