Springs with two Way Shape Memory Obtained by Stabilised Stress Induced Martensite Training Methods J.M. Guilemany, B.G. Mellor, J. Fernández, R. Franch and S.E. Willott J. Phys. IV France, 05 C2 (1995) C2-379-C2-384 DOI: 10.1051/jp4:1995258