[3] Frank C,Jong W,Klamer S.Opt.Eng.,2002,41:1021.
[4] Hasekamp O P,Landgraf J.Appl.Opt.,2007,46:3332.
[5] Ford K B,Michael R D.Opt.Express,2001,9:444.
[6] Kurosaki H.Adv.Space Res.,2007,39:185.
[7] Jones H S,Iannarilli J F,Kehahian L P.Opt.Express,2004,12:6559.
[8] Scharmer G B,Narayan G,Hillberg T.Astrophys.J,2008 689:69.