ChisnallR. (1985). Rock climbing safety manual (2nd ed.). Toronto: Ontario Rock Climbing Association.
2.
HolanJ.BeasonS. (2002). Rope access equipment testing: The back-up safety system. Truckee, CA and Boulder City, NV: Ropeworks and U.S. Bureau of Reclamation.
3.
LarsonA. (1990). Belay competence drop test method for rope rescue systems. Invermere, BC: British Columbia Council of Technical Rescue.
4.
MauthnerK.MauthnerK. (1994). Gripping ability on rope in motion. Invermere, BC: Rigging for Rescue.
5.
SolesC. (1995, July/August). Single-rope buyer's guide: Everything you always wanted to know about ropes but didn't know to ask. Rock & Ice, 68, 117–128.
