Heimbach, J A, A B Super, B A Boe, G Langer, and J T Mcpartland. “Comparison of Two Acoustic Ice Nucleus Counters”. The Journal of Weather Modification 40, no. 1 (April 1, 2008): 54–63. Accessed September 22, 2023. https://journalofweathermodification.org/index.php/JWM/article/view/192.