REFERENCES
- Marston Conder . 1987 . Three-relator Quotients of the Modular Group . Quart. J. Math. Oxford Ser. (2) , 38 ( 152 ) : 427 – 447 .
- Colin M. , Campbell and Edmund F. , Robertson . 1982 . The Efficiency of Simple Groups of Order <105 . Comm. Algebra , 10 ( 2 ) : 217 – 225 .
- Colin M. , Campbel and Edmund F. , Robertson . 1984 . Presentations for the Simple Groups . Comm. Algebra , 12 ( 21–22 ) : 2643 – 2663 .
- Colin M. , Campbell , Robertson , E.F. and Williams , P.D. Efficient Presentations for Finite Simple Groups and Related Groups . Proceedings of the Second International Conference on Group Theory held in Pusan . August 15–21 1988 . Edited by: Kim , A.C. and Neumann , B.H. pp. 65 – 72 . Springer .
- The GAP Group, Aachen, St Andrews, GAP – Groups, Algorithms, and Programming, Version 4.22000, http://www-gap.dcs.st-and.ac.uk/˜gap
- James Howie , Vasileios Metaftsis and Richard M. , Thomas . Triangle Groups and their Generalisations 135 – 147 . In Kim and Johnson [KJ95]
- Jamali , A. and Robertson , E.F. 1989 . Efficient Presentations for Certain Simple Groups . Comm. Algebra , 17 ( 10 ) : 2521 – 2528 .
- Kenne , P.E. 1986 . Efficient Presentations for Three Simple Groups . Comm. Algebra , 14 ( 5 ) : 797 – 800 .
- Kim , A.C. and Johnson , D.L. 1995 . Groups–Korea '94 Berlin Walter de Gruyter & Co. .
- Kovács , L.G. Finite Groups with Trivial Multiplicator and Large Deficiency In Kim and Johnson [KJ95], pp. 211–225
- Gunter Malle , Jan Saxl and Thomas Weigbel . 1994 . Generation of Classical Groups . Geom. Delicata , 49 ( 1 ) : 85 – 116 .
- Robertson , E.F. , Thomas , R.M. and Wotherspoon , C.I. A Class of Inefficient Groups with Symmetric Presentation In Kim and Johnson [KJ95], 277 284
- Wiegold , J. The Schur Multiplier: An Elementary Approach, Groups — St Andrews 1981 . Proceedings Conference St Andrews, 1981 . Edited by: Colin M. , Campbell and Edmund F. , Robertson . Vol. 71 , pp. 137 – 154 . Cambridge University Press . London Mathematical Society Lecture Note Series