data_2011673 _journal_name_full 'Acta Crystallographica, Section C' _journal_year 2001 _journal_volume 57 _journal_page_first 22 _journal_page_last 25 _publ_section_title ; Phase transitions in n-alkylammonium dihydrogenphosphates and dihydrogenarsenates and ferroelastic structures of n-hexyl- and n-octylammonium dihydrogenarsenate crystals ; loop_ _publ_author_name "F\'abry, Jan" 'Kroupa, Jan' "C\'isa\