Orchard, S., R. E. Campbell, L. Turner, R. C. Butler, T. Curnow, E. Patrick, and M. Walter. “Long-Term Deep-Freeze Storage of Neonectria Ditissima Conidium Suspensions Does Not Reduce Their Ability to Infect Apple Trees”. New Zealand Plant Protection, vol. 71, July 2018, pp. 158-65, doi:10.30843/nzpp.2018.71.129.