Chuchelov, D. S., Vaskovskaya, M. I., Tsygankov, E. A., Vassiliev, V. V., Zibrov, S. A., Velichansky, V. L. (2026). Dual-frequency Doppler-free crossover resonance with suppressed magnetic-field sensitivity for compact optical clocks. Journal of Applied Physics. https://doi.org/10.1063/5.0316758