Mesomorphic properties of short chains substituted heteroaromatic salts M. Veber, P. Sotta, P. Davidson, A.M. Levelut, C. Jallabert et H. Strzelecka J. Phys. France, 51 12 (1990) 1283-1301 DOI: 10.1051/jphys:0199000510120128300