Tolga Ülkü

Small regional airport sustainability: Lessons from benchmarking

N. Adler, Ekaterina Yazhemsky, Tolga Ülkü, 2013 .

Efficiency of German Airports and Influencing Factors

Tolga Ülkü, 2009 .

How scale and institutional setting explain the costs of small airports? -An application of spatial regression analysis

Jürgen Müller, Tolga Ülkü, Jürgen Müller, 2014 .

PRIVATIZATION OF TURKISH AIRPORTS

Tolga Ülkü, 2011 .

A comparative efficiency analysis of Spanish and Turkish airports

Tolga Ülkü, Tolga Ülkü, 2015 .

Privatization, restructuring and its effects on performance: A comparison between German and British airports

Tolga Ülkü, Tolga Ülkü, 2009 .

Twenty years of airport efficiency and productivity studies: A machine learning bibliometric analysis

Tolga Ülkü, K. F. See, P. Forsyth, 2022, Research in Transportation Business & Management.