@article{articleb4e5fb1a,
title   = {Systolic ratio, index of closed orbits and convexity for tight contact forms on the three-sphere},
author = {Abbondandolo, Alberto and Bramham, Barney and Hryniewicz, Umberto L and Salomão, Pedro Antônio Santoro},
year = {2018},
doi = {10.1112/s0010437x18007558},
journal   = {Compositio Mathematica}
}