| Periodical/Year | 1999 |
| Periodical/Issue | 6714, 6715, 6716, 6717, 6718, 6719, 6720, 6721, |
| Periodical / Volume | 397 |
| Periodical/Year | 1999 |
| Periodical/Issue | 6722, 6723, 6724, 6725, 6726, 6727, 6728, 6729, 6730 |
| Periodical / Volume | 398 |
| Periodical/Year | 1999 |
| Periodical/Issue | 6731, 6732, 6733, 6734, 6735, 6736, 6737, 6738+sup, |
| Periodical / Volume | 399 |
| Periodical/Year | 1999 |
| Periodical/Issue | 6739, 6740, 6741, 6742, 6743, 6744, 6745, 6746, 6747, |
| Periodical / Volume | 400 |
| Periodical/Year | 1999 |
| Periodical/Issue | 6748, 6749, 6750, 6751, 6752, 6753, 6754, 6755, 6756, 6757, 6758, 6759, 6760, 6761, 6762, 6763, 6764 |
| Periodical / Volume | 401 |
| Periodical/Year | 1999 |
| Periodical/Issue | 5398, 5399, 53400, 5401, 5402, 5403, 5404, 5405, 5406, 5407, 5408, 5409, 5410 |
| Periodical / Volume | 283 |
| Periodical/Year | 1999 |
| Periodical/Issue | 5411, 5412, 5413, 5414, 5415, 5416, 5417, 5418, 5419, 5420, 5421, 5422, 5423, |
| Periodical / Volume | 284 |
| Periodical/Year | 1999 |
| Periodical/Issue | 5424, 5425, 5426, 5427, 5429, 5430, 5431, 5432, 5433, 5434, 5435, 5436, |
| Periodical / Volume | 285 |
| Periodical/Year | 1999 |
| Periodical/Issue | 5437, 5438, 5439, 5440, 5441, 5442, 5443, 5444, 5445, 5446, 5447, 5448, 5449 |
| Periodical / Volume | 286 |
| Periodical/Year | 1999 |
| Periodical/Issue | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25 |
| Periodical / Volume | 340 |
| Periodical/Year | 1999 |
| Periodical/Issue | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27 |
| Periodical / Volume | 341 |
| Periodical/Year | 1999 |
| Periodical/Issue | 1-2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28-29, 30, 31-32, 33, 34-35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51-52 |
