“…All the samples used for this transport study were examined by x-ray, confirming sharp Brag spots. According to Phillips [3], the crystal is monoclinic, though nearly orthorhombic; a = = 21.999 (14), b = 12.573 (8), c = 3.890(1) Å; = 90.29(4). Since previously crystal axes have been assigned in different ways [3,15], to avoid confusion, we adopt the x, y, and z labeling of the most, second and least conducting axes respectively, which correspond to the b, a, and c (or c, b, and a) axes in the Weger's (or Phillips's ) convention.…”