Indications for transit-timing variations in the exo-Neptune HAT-P-26b C. von Essen, S. Wedemeyer, M. S. Sosa, M. Hjorth, V. Parkash, J. Freudenthal, M. Mallonn, R. G. Miculán, L. Zibecchi, S. Cellone and A. F. Torres A&A, 628 (2019) A116 Published online: 14 August 2019 DOI: 10.1051/0004-6361/201731966