Elastic properties of quaternary oxypnictides LaOFeAs and LaOFeP as basic phases for new 26–52K superconducting materials from first principles
Scripta Materialia (2008) - Comment
doi: 10.1016/j.scriptamat.2008.07.028  issn: 1359-6462 

I.R. Shein, A.L. Ivanovskii