1. Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, 6300-559 Guarda, Portugal
2. Technological and Management School, CI&DEI, Polytechnic Institute of Guarda, 6300-559 Guarda, Portugal
3. Research Centre in Business Sciences, University of Beira Interior, 6200-609 Covilhã, Portugal
4. Health Sciences Research Centre, University of Beira Interior (CICS-UBI), Avenida Infante D. Henrique, 6200-506 Covilhã, Portugal