TY - JOUR AU - Berggren, Stein A. AU - Lukkassen, Dag AU - Meidell, Annette AU - Simula, Leon TI - Some methods for calculating stiffness properties of periodic structures JO - Applications of Mathematics PY - 2003 SP - 97 EP - 110 VL - 48 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.1023/A:1026090026531/ DO - 10.1023/A:1026090026531 LA - en ID - 10_1023_A_1026090026531 ER -