column
![](/style/images/custom/toleft.png)
![](/style/images/custom/toright.png)
1987, 8(zk): 17-21.
1987, 8(zk): 22-32.
1987, 8(zk): 23-31.
1987, 8(zk): 38-46.
1987, 8(zk): 47-50.
1987, 8(zk): 73-74.