Rymond, B. C., Rokeach, L. A., & Hoch, S. O. (1993). Human snRNP polypeptide D1 promotes pre-mRNA splicing in yeast and defines nonessential yeast Smd1p sequences. Nucleic Acids Research, 21(15), 3501-5. https://doi.org/10.1093/nar/21.15.3501(Original work published 1993)