@article{guillemin2017convexity,
	title={Convexity for Hamiltonian torus actions on $b$-symplectic manifolds},
	author={Guillemin, Victor and Miranda, Eva and Pires, Ana Rita and Scott, Geoffrey},
	journal={Mathematical Research Letters},
	volume={24},
	number={2},
	pages={363 -- 377},
	year={2017}
}