• Aiolos Duolite, in recumbent Buyer's Guide (P. Eland), VV20 Dec 2005, p54
• Bike Friday, in recumbent Buyer's Guide (P. Eland), VV20 Dec 2005, p54; completely new model, VV22 Jun 2006, p6
• Birdy recumbent conversion kit, VV3 Sep 2001, p7
• M5 CMPCT [letter] (P. Nieuwenhuis), VV19 Sep 2005, p44; noted in recumbent Buyer's Guide (P. Eland), VV20 Dec 2005, p54
• Russian prototype, VV34 Jun 2009, p6
• SPEZI design competition for, in SPEZI 2004 report (P. Eland), VV14 Jun 2004, p42
• trike [by Aiolos], in "IFMA 2001" (P. Eland), VV4 Dec 2001, p42; refinements, VV6 Jun 2002, p44; VV12 Dec 2003, p38; VV19 Sep 2005, p50