MJMBR indexed in Google Scholar; and included in i-Scholar, Infobase Index, General Impact Factor, Advanced Science Index, Scientific Indexing Services, IIFS, iSEEK, Scientific Journal Impact Factor, CiteFactor, Polish Scholarly Bibliography (PBN), abcGATE, Research Bible; Academia.edu; EZB (Electronic Journal Library); Technical University of Applied Sciences Wildau Library; ULB (University and State Library Darmstadt); GVK (GBV Union Catalogue); BSZ (Southwest German Library); German National Library of Science and Technology; European University Viadrina; BSB (Bavarian State Library); Ludwig University Library; University Library of the Humboldt University of Berlin; Free University of Berlin Library; Kempten University of Applied Sciences Library; Augsburg University Library; University of Passau Library; Rosenheim University of Applied Sciences Library; The Library of the University of Landshut; Hochschule Weihenstephan-Triesdorf Library; Weihenstephan-Triesdorf University Library; Bamberg University Library; Provincial Library Amberg; HNU University Library; Technische Hochschule Nürnberg University Library; Catalogue of the University Library of Erlangen-Nuremberg; Leipzig University Library; The Academy of Sciences and Literature Library, Mainz; Philipps University Library Marburg; THM University Library; Kassel University Library; Rhein Main University Library; Campus Catalogue, Hamburg University; LIVIVO: The Search Portal for Life Sciences; HeBIS-Portal; HBZ–Verbund Database; Bayreuth University Library; Munich University of Applied Science Library; Regensburg University Library Catalog; Catholic University Library of Eichstätt-Ingolstadt; Technical University of Munich Library; University of Clausthal Library; Saarland University Library; Cooperative library Network Berlin Brandenburg; University of Cologne Library.