TY - JOUR TI - Error analysis of an extended discontinuous galerkin method for highly-oscillatory problems AU - FRENCH, D. AU - VAUGHAN, B. AU - TOPRAKSEVEN, Å. JO - Sigma Journal of Engineering and Natural Sciences PY - 2021 VL - 39 SP - 64 EP - 73 DO - 10.14744/sigma.2021.00043 ER -