PT Journal AU Badanik, B Kandera, B SO Doprava a spoje PY 2012 BP 9 EP 12 VL 8 IS 1 WP https://tac.uniza.sk/artkey/das-201201-0002.php SN 13367676 AB This paper deals with the convergence of low-fare airlines business models and their options for turning them into a survivable and profitable model ER