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

Vervoort, S and Johnstone, R(2021). SDS–polyacrylamide gel electrophoresis and Western blotting. Bio-protocol Preprint. bio-protocol.org/prep1199.
Fan, Z., Devlin, J. R., Hogg, S. J., Doyle, M. A., Harrison, P. F., Todorovski, I., Cluse, L. A., Knight, D. A., Sandow, J. J., Gregory, G., Fox, A., Beilharz, T. H., Kwiatkowski, N., Scott, N. E., Vidakovic, A. T., Kelly, G. P., Svejstrup, J. Q., Geyer, M., Gray, N. S., Vervoort, S. J. and Johnstone, R. W.(2020). CDK13 cooperates with CDK12 to control global RNA polymerase II processivity . Science Advances 6(18). DOI: 10.1126/sciadv.aaz5041