by MUUS, Kyle J., Geller, Jack M., Williams, John D., Ludtke, Richard L., Knowlton, Douglas D., Hart, L. Gary
Published in The Journal of rural health (01.03.1998)

by Muus, Kyle J., Ludtke, Richard L., Gibbens, Brad
Published in Journal of community health (01.02.1995)

by Stratton, Terry D
Published in Academic medicine (01.02.1991)

by Stratton, T D, Dunkin, J W, Juhl, N, Ludtke, R L, Geller, J M
Published in The Journal of nursing administration (01.11.1991)

by Ludtke, R. L.
Published in Social Forces (01.12.1982)

by Ludtke, R.L. (University of North Dakota), Kelly, J, Geller, J
Published in The rural sociologist (01.04.1988)

by Ludtke, R L, Geller, J M, Hart, J P
Published in Journal of hospital marketing (14.09.1990)