Reviewers : 1 . Corr . Member Prof . D . Sc . Dr Arch . Atanas Kovachev ,
Assoc . Prof . Dr Eng . Veneta Kotseva 1 . Assoc . Prof . Dr Eng . Todor Kostadinov 2 . Assoc . Prof . Dr Eng . Lachezar Hrischev 3 . Dr Eng . Ivan Kalchev Ivanov
ISBN 978-619-90732-7-8 ( hardcover ) ISBN 978-619-90732-9-2 ( pdf )
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