column
![](/style/images/custom/toleft.png)
![](/style/images/custom/toright.png)
1983, 4(3): 219-226.
1983, 4(3): 227-234.
1983, 4(3): 235-237.
1983, 4(3): 238-238.
1983, 4(3): 239-244.
1983, 4(3): 287-290.
1983, 4(3): 295-300.