1. Bagnall, R. H., R. H. Larson & J. C. Walker, 1956. Potato viruses M, S and X in relation to interveinal mosaic of the Irish Cobbler variety.Bull. Wis. agric. Exp. Stn 198.
2. Bagnall, R. H., C. Wetter & R. H. Larson, 1959. Differential host and serological relationships of potato virus M, potato virus S, and carnation latent virus.Phytopathology 49: 435–442.
3. Bode, O., 1966. Untersuchungen über das Kartoffel-M-Virus.Proc. E.A.P.R. Conf. (Zürich, 4–10 September 1966): 226–227.
4. Bokx, J. A. de, 1970. Reactions of various plant species to inoculation with potato virus S.Neth. J. Pl. Path. 76: 70–78.
5. Chrzanowska, M. 1969. Wstępne badania nad wykrywaniem wirusów M i S w ziemniakach przy pomocy testów biologicznych. (Preliminary studies on the detection of M and S viruses in potatoes with the aid of biological tests.)Zeszyty Probl. Post. Nauk Rol. 94: 127–133.