@article{article253417e2,
title   = {Ultrasound-assisted conversion of alpha-chitin into chitosan},
author = {Birolli, Willian Garcia and Delezuk, Jorge Augusto de Moura and Campana Filho, Sergio Paulo},
year = {2016},
doi = {10.1016/j.apacoust.2015.10.002},
journal   = {Applied Acoustics}
}