A Method to Protect More than One Line From Deletion Authors Publication Sinc-Link Pub Details Volume: 4 Issue: 1 Date January/February 1986 Pages 7 Read the article See all articles from Sinc-Link v4 n1 Short technique to protect ZX81/TS 1000 programs. Products Downloadable Media Related Articles Tags Sinc-Link, TS 1000 People No people associated with this content.