AIP Conference Proceedings [AIP Publishing PROCEEDINGS OF THE 45TH INTERNATIONAL CONFERENCE ON APPLICATION OF MATHEMATICS IN ENGINEERING AND ECONOMICS (AMEE’19) - Sozopol, Bulgaria (07–13 June 2019)] PROCEEDINGS OF THE 45TH INTERNATIONAL CONFERENCE ON APPLICATION OF MATHEMATICS IN ENGINEERING AND ECONOMICS (AMEE’19) - Innovations in teaching and assessment of engineering courses, supported by authentication and authorship analysis system