@article{article, title  = {{An ultrasonic study of sodium ion diffusion in polycrystalline alumina}},

 publisher = {{Elsevier BV}},

 url = {{}},

 year = {{1981}},

 month = {{1}},

 author = {{Almond DP and Çallica H and West AR}},

 doi = {{10.1016/0025-5408(81)90187-2}},

 volume = {{16}},

 journal = {{Materials Research Bulletin}},

 issue = {{1}},

 pages = {{117-124}},

 note = {{Accessed on 2025/01/13}}}