Esteban-Romero R

Publications in Math-Net.Ru

1. A characterization via graphs of the soluble groups in which permutability is transitive
   
   Algebra Discrete Math., 2009, no. 4,  10–17
2. Transitivity of Sylow permutability, the converse of Lagrange's theorem, and mutually permutable products
   
   Tr. Inst. Mat., 16:1 (2008),  4–8