TY - JOUR AU - Adamec, Ladislav TI - A note on the fundamental matrix of variational equations in $\mathbb{R}^3$ JO - Mathematica Bohemica PY - 2003 SP - 411 EP - 418 VL - 128 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/MB.2003.133999/ DO - 10.21136/MB.2003.133999 LA - en ID - 10_21136_MB_2003_133999 ER -