Media type: E-Article Title: Motion machines of second kind Contributor: Krastev, Georgi; Kolikov, Kiril; Epitropov, Yordan Published: Scientific Research Publishing, Inc., 2012 Published in: Natural Science, 4 (2012) 4, Seite 252-257 Language: Not determined DOI: 10.4236/ns.2012.44036 ISSN: 2150-4091; 2150-4105 Keywords: General Materials Science Origination: University thesis: Footnote: Access State: Open Access