Orcad PSpice Reference Manual named PSpcRef.pdf (页面存档备份,存于互联网档案馆), p. 209. This manual is included with the free version of Orcad PSpice, but they do not maintain a copy on line. If the link given here expires, try Googling PSpcRef.pdf.
nanodottek.com
NanoDotTek Report NDT14-08-2007, 12 August 2007 存档副本(PDF). [2015-03-23]. (原始内容(PDF)存档于2012-06-17).
Orcad PSpice Reference Manual named PSpcRef.pdf (页面存档备份,存于互联网档案馆), p. 209. This manual is included with the free version of Orcad PSpice, but they do not maintain a copy on line. If the link given here expires, try Googling PSpcRef.pdf.