Fraser, J. M., Hare, K. E., Hare, K. G., Troscheit, S., & Yu, H. (2019). The Assouad spectrum and the quasi-Assouad dimension: a tale of two spectra. Annales Fennici Mathematici, 44(1), 379–387. https://doi.org/10.5186/aasfm.2019.4419