physica status solidi (b)
physica status solidi (b) > 250 > 4 > 787 - 791
physica status solidi (b) > 250 > 7 > 1265 - 1277
physica status solidi (b) > 250 > 7 > 1293 - 1299
physica status solidi (b) > 250 > 8 > 1510 - 1518
physica status solidi (b) > 250 > 11 > 2394 - 2402