Strong influence of magnetic field and non-uniform stress on elastic modulus and transition temperatures of twinned Ni–Fe(Co)–Ga alloy oleh Anna Kosogor, Viktor Soprunyuk, Sabri Koraltan, Vladimir Golub, Dmytro Velyhotskyi, Volodymyr Chernenko, Hideki Hosoda, Dieter Suess, Wilfried Schranz, Victor A. L’vov