@inbook {5032,
	title = {Comparison between the standard average muscle activation with the use of snorkel and without snorkel in breaskstroke techinique},
	booktitle = {Book of Abstracts of the 7688 XIth International Symposium for Biomechanics and Medicine in Swimming},
	year = {2010},
	pages = {59},
	address = {Oslo},
	author = {A. Concei{\c c}{\~a}o and Gamboa, H. and S. Palma and T. Ara{\'u}jo and N. Nunes and D. Marinho and Costa, A. and A. Silva and H. Louro}
}
