Article 2288 N.H. Hakobyan V.M. Aroutiounian H.L. Margaryan V.K. Abrahamyan A.R.Mailian D.L. Hovhannisyan D.K. Pokhsrsryan Molecular Crystals and Liquid Crystals 527 . 59(215)–64(220 2010 http://www.tandfonline.com/loi/gmcl20