Fábry, J., Petříček, V., Kroupa, J., Císařová, I. Ferroelastic structures of n-pentyl-, n-hexyl- and n-nonylammonium dihydrogenphosphate crystals. Acta Crystallographica Section B-Structural Science. 2000, 56(-), 906-914. ISSN 0108-7681. E-ISSN 2052-5206.