---
title: "onix-codelist-259"
canonical: "https://docs.holnix.com/space/HW/388235716/onix-codelist-259"
format: markdown
---
# ONIX Code Lists Issue 67, October 2024

## List 259: Collection frequency code

| Value | Description | Notes |
| --- | --- | --- |
| u | Unknown |  |
| i | Irregular | No fixed publication schedule |
| e | Biennial | Once every two years |
| a | Annual | Yearly |
| b | Biannual | Twice a year, or once per academic semester |
| t | Triannual | Three times a year, or once per academic term |
| q | Quarterly | Four times a year |
| s | Bimonthly | Six times per year |
| m | Monthly | Once every month, or approximately twelve times per year |
| f | Fortnightly | Once every two weeks, or approximately twenty five times per year |
| w | Weekly | Or approximately fifty times per year |
| d | Daily, or more frequently than weekly | At least twice a week |
| x | No future publications | Positive indication that the product is the last to be published in the collection, or that no further publications are planned |

[©](https://doi.org/10.4400/nwgj) [EDItEUR](https://www.editeur.org)