Sparse aperture masking interferometry survey of transitional discs - Search for substellar-mass companions and asymmetries in their parent discsM. Willson, S. Kraus, J. Kluska, J. D. Monnier, M. Ireland, A. Aarnio, M. L. Sitko, N. Calvet, C. Espaillat and D. J. WilnerA&A, 595 (2016) A9DOI: https://doi.org/10.1051/0004-6361/201628859