Dergiler / Turkish Journal of Physics / 1999 / Cilt: 23 - Sayı: 1$^{19}F NMR study of flux-line dynamics in fluorinated $YBa_{2}Cu_{4}O_{8}$Fügen TABAK,Maurizio CORTIDergiTurkish Journal of PhysicsSayı1999 · Cilt: 23 - Sayı: 1Sayfa0–0DOI—