physica status solidi (b)
physica status solidi (b) > 250 > 2 > 338 - 343
physica status solidi (b) > 250 > 2 > 370 - 373
physica status solidi (b) > 250 > 3 > 575 - 578
physica status solidi (b) > 250 > 3 > 533 - 536
physica status solidi (b) > 250 > 3 > 537 - 541
physica status solidi (b) > 250 > 9 > 1907 - 1912