TY - JOUR AU - A. Hughes AU - Phillip Armitage BT - Monthly Notices of the Royal Astronomical Society DA - 2012-04 DO - 10.1111/j.1365-2966.2012.20892.x PY - 2012 SP - 389 EP - 405 T2 - Monthly Notices of the Royal Astronomical Society TI - Global variation of the dust-to-gas ratio in evolving protoplanetary discs VL - 423 SN - 00358711 ER -