Acknowledgements
We acknowledge the cooperation of Mr. Claudio Mariani, Director of WMT Ltd. and owner of the hotel for
giving his consent to publish the results of this work. Special thanks also go to the University of Malta and the
University of Valladolid, Spain for supporting this study. Finally, we acknowledge the support given through the EU
Erasmus+ programme, to make this collaboration possible between the two universities, through the exchange of
students and staff.