STRANGMANN‐DIEKMANN M, KLÖNE A, OŻYHAR A, KREKLAU F, KILTZ H, HEDTMANN U, WELZEL P, PONGS O. Affinity labelling of a partially purified ecdysteroid receptor with a bromoacetylated 20‐OH‐ecdysone derivative. European Journal of Biochemistry. 1990 Apr;189(1):137–43. doi: 10.1111/j.1432-1033.1990.tb15470.x.