
%0 Journal Article
%A Wills, D 
%A Bolton, JG 
%T Improved Positions and Some Optical Identifications for 451 4C Radio Sources Between Declinations 4° and 20°
%J Australian Journal of Physics
%D 1969/12/01
%V 22
%N 6
%P 775-812
%K 
%R https://doi.org/10.1071/PH690775
%U https://www.publish.csiro.au/paper/PH690775 
%X Accurate positions have been measured at Parkes for 451 40 radio sources between declinations 4° and 20°. For most of the sources the r.m.s. uncertainty is ± ION arc in each coordinate. Optical identifications are suggested for 94 sources, of which 22 are galaxies and 72 are possible quasi.stellar objects. 
