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pdfformat: 

@InProceedings{lohrey:LIPIcs.STACS.2021.51, author = {Lohrey, Markus}, title = {{Subgroup Membership in GL(2,Z)}}, booktitle = {38th International Symposium on Theoretical Aspects of Computer Science (STACS 2021)}, pages = {51:151:17}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {9783959771801}, ISSN = {18688969}, year = {2021}, volume = {187}, editor = {Bl\"{a}ser, Markus and Monmege, Benjamin}, publisher = {Schloss Dagstuhl  LeibnizZentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/opus/volltexte/2021/13696}, URN = {urn:nbn:de:0030drops136961}, doi = {10.4230/LIPIcs.STACS.2021.51}, annote = {Keywords: free groups, virtually free groups, subgroup membership, matrix groups} }
Keywords:  free groups, virtually free groups, subgroup membership, matrix groups  
Collection:  38th International Symposium on Theoretical Aspects of Computer Science (STACS 2021)  
Issue Date:  2021  
Date of publication:  10.03.2021 