Colombia gives final approval for Avianca and Viva Air to merge - Air Data News

Avianca, however, criticized the delay, which made an agreement with a low cost airline that has not been flying for two months “unfeasible”

Champion of the Americas - Airline Weekly

Colombia's Avianca backs down from Viva Air merger

Airlines: Riding the Recovery - Profit forecasts - KPMG Ireland

The Avianca/Viva Saga is Even Stranger Than I Imagined, and Trouble is Brewing – Cranky Flier

Avianca fires back at Aerocivil for 'unfeasible conditions' on Viva acquisition, News

Colombia gives final approval for Avianca and Viva Air to merge - Air Data News

Thousands stranded as Colombia's Viva Air grounds flights

Aeroflap - Avianca withdraws from merger with Colombia's Viva Air

Gol, Avianca nod to airline consolidation with pan-Latin American deal