Protocol: A literature review about the use of crowdsourcing in educational environments Enrique Estellés Arolas | Show more Enrique Estellés Arolas Spain Catholic University of Valencia Submitted: 2016-07-01 | Accepted: 2016-08-29 | Published: 2016-12-21 DOI: https://doi.org/10.4995/wpom.v7i2.6069