Dual-high-frequency VLBI study of blazar-jet brightness-temperature gradients and collimation profilesP. R. Burd, M. Kadler, K. Mannheim, A.-K. Baczko, J. Ringholz and E. RosA&A, 660 (2022) A1DOI: https://doi.org/10.1051/0004-6361/202142363
