Volume & Issue: Volume 3, Issue 1, March 2014, Pages 1-72 
3. All simple groups with order from 1 million to 5 million are efficient

Pages 17-30


Colin M. Campbell; George Havas; Colin Ramsay; Edmund F. Robertson

5. Co-prolongations of a group extension

Pages 57-64


Nguyen Tien Quang; Doan Trong Tuyen; Nguyen Thi Thu Thuy