There are 2 references in total for CaCl.

1. Lavy, L. and Bernath, P.F., "Molecules in Cool Stars: The A ²Π - X ²Σ⁺ and the B ²Σ⁺ - X ²Σ⁺ Band Systems of CaCl", The Astrophysical Journal 970, 1-13 (2024). [link to article]
2. Langhoff, S. R., Bauschlicher, C. W., Partridge, H., Ahlrichs, R., "Theoretical study of the dipole moments of selected alkaline‐earth halides", Journal of Chemical Physics 84, 5025-5031 (1986). [link to article][86LaBaP1.KCl]

The ExoMol bibliometrician is Olga Yurchenko