Numerical data and functional relationships in science and technology New series Group 3, Condensed matter Vol. 41. Semiconductors : supplement to vols. III/17, 22 (print version), revised and updated edition of vols. III/17, 22 (CD-ROM) Subvol. A1. Group IV elements, IV-IV and III-V compounds Pt. Alpha Lattice properties : supplement to vols. III/17a, 22a (print version), revised and updated edition of vols. III/17a, 22a (CD-ROM)