Barka, N., Tomasi, JP., & Stadtsbaeder, S. (1985). Use of Whole Streptococcus-pneumoniae Cells As a Solid-phase Sorbent for C-reactive Protein Measurement By Elisa. Journal of Immunological Methods, 82(1), 57-63. https://doi.org/10.1016/0022-1759(85)90224-8 (Original work published 1985)