Pulsational instability of pre-main-sequence models from accreting protostars - II. Modelling echelle diagrams of δ Scuti stars without rotational splittingT. Steindl, K. Zwintz and M. MüllnerA&A, 664 (2022) A32DOI: https://doi.org/10.1051/0004-6361/202243242