Some remarks on the `family tree' of Bärnighausen
- 1 November 1978
- journal article
- Published by International Union of Crystallography (IUCr) in Acta Crystallographica Section A
- Vol. 34 (6) , 1023-1025
- https://doi.org/10.1107/s0567739478002090
Abstract
Some comments are made on a recent paper of Bärnighausen [Acta Cryst. (1975), A31, S3]. A few improvements are suggested; these include a more detailed partial synopsis in relation to Landau theory, and a comparison between sequences of subgroups and physical transitions in real compounds.Keywords
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