@misc{cf9826f49f724d69b59a2b17c18e0495,
title = "Optical element and method for its manufacture as well as lightography apparatus and method for manufacturing a semiconductor device",
author = "Roman Klein and Frank Stietz and Marco Wedowski and Eric Louis and Frederik Bijkerk and Yakshin, \{Andrey E\} and \{Klein Roman,stietz Frank,wedowski Marco,louis Eric,bijkerk Frederik\}, \{Yakshin Andrey E\}",
year = "2005",
month = jan,
day = "12",
language = "English",
type = "Patent",
note = "CN1565035; H01L 21/ 027 A I",
}