Indicates the type of supplement or the reason for the supplement (for example, “ conference ” for a supplement containing information from a conference symposium).
Indicates the type of supplement or reason for the supplement (if the publisher has recorded that information), for example:
|
issue |
for supplements to a particular journal issue |
|
conference |
for supplements containing information from a conference, symposium, or other gathering |
|
periodic |
for supplements issued at regular intervals |
|
topic |
for supplements concerning a particular subject area |
| Value | Meaning |
|---|---|
| Data characters | Text, numbers, or special characters. |
| Restriction: This attribute may be specified if the element is used. | |