Low-frequency pulse profile variation in PSR B2217+47: evidence for echoes from the interstellar medium (Monthly Notices of the Royal Astronomical Society, 2018)

(untitled) - Michilli, D; Hessels, JWT; Donner, JY; Grießmeier, JM; Serylak, M; Shaw, B; Stappers, BW; Verbiest, JPW; Deller, AT; Driessen, LN; Stinebring, DR; Bondonneau, L; et al.