Readers should cite both the Bio-protocol preprint and the original research article where this protocol was used:

Lau, D, Márquez, C L, Parker, M and Böcking, T(2022). Negative staining of HIV viral particles permeabilised with PFO with capsid stabilised with IP6. Bio-protocol Preprint. bio-protocol.org/prep1709.
Márquez, C. L., Lau, D., Walsh, J., Shah, V., McGuinness, C., Wong, A., Aggarwal, A., Parker, M. W., Jacques, D. A., Turville, S. and Böcking, T.(2018). Kinetics of HIV-1 capsid uncoating revealed by single-molecule analysis. eLIFE. DOI: 10.7554/eLife.34772