Aru, M.-L., Maucó, K., Manara, C. F., Haworth, T. J., Ballering, N., Boyden, R., Campbell-White, J., Facchini, S., Rosotti, G. P., Winter, A., Miotello, A., McLeod, A. F., Robberto, M., Petr-Gotzens, M. G., Ballabio, G., Vicente, S., Ansdell, M., Cleeves, L. I., "A tell-tale tracer for externally irradiated protoplanetary disks: Comparing the [C I] 8727 Å line and ALMA observations in proplyds", Astronomy & Astrophysics, 2024