Speziali, N. L.Chapuis, G.2006-03-072006-03-072006-03-07199110.1107/S0108768191003646https://infoscience.epfl.ch/handle/20.500.14299/227261Phase Transitions in N(CH3)4HSO4: a Novel Compound with an Incommensurate Phasetext::journal::journal article::research article