s article. Handwriting is also not covered.↑ Truss 2004. p. 25.↑ Felici 2009↑ In the 1990s, some print and Web sources began referring to double sentence spacing as "French spacing", leading to some ambiguity with the term. See for example, Eckersley et al. 1994. p. 46, and Haley 2006.↑ 6.0 6.1 6.2 Bringhurst 2004. p. 28.↑ Felici 2003. p. 80↑ Jury 2009. p.58↑ 9.0 9.1 9.2 9.3 Felici 2009↑ Jury 2009. p. 57; Williams 2003. p. 13; Fogarty 2008. p. 85↑ Felici 2003. p. 80; Fogarty 2008. p. 85; Jury 2009. p. 56; Strizver 2010; Walsh 2004. p. 3; Williams 2003. pp. 13–14.↑ Williams 2003. pp. 13–14. This refers to professionally published works, as it is possible for individual authors to publish works through desktop publishing systems. Williams states, "I guarantee this: never in your life have you read professionally set text printed since 1942 that used two spaces after each period." See also, Felici 2003. p. 81; Strizver 2010; Weiderkehr 2009; Williams 1995. p. 4.↑ Ros