| No. | Vol. | Page | Authors | Title | Language |
| 1 | 37 | 45 | Bronowicka-Mielniczuk U. | Efficiency of crop rotation design | Polish |
| 2 | 37 | 63 | Siatkowski I., Goszczurna T. | Orthogonality in row-column design | English |
| 3 | 35 | 61 | Goszczurna T., Siatkowski I. | The canonical efficiency factor of row-column designs | English |
| 4 | 33 | 111 | Goszczurna T., Siatkowski I. | Orthogonality and efficiency factor in row-column designs | English |