We are welcoming some new libraries into our shared catalog (Dynix Horizon)
and it's exposing some of the weaknesses in our own serial pub patterns.
We've got Woman's Day set up as follows:

Chron Pattern:  YMD (Year, Month, Day)
Instance String:  10,20,-1
Instance Unit:  Day of
Every:  1
Calendar Unit:  Month

This predicts issues for the 10th, 20th and the last day (whether 30, 31 or
28) of each month.  Obviously, it needs to be edited each time we receive an
issue.

Does anyone out there have this title set up so that it actually predicts
issues that arrive every three weeks?

We tried the following but get an error message when we try to save it:

Chron Pattern:  YMD (Year, Month, Day)
Instance String:  blank
Instance Unit:  n/a
Every:  3
Calendar Unit:  Week

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Noreen Fish
Electronic Resources & Periodicals Librarian
La Crosse Public Library
800 Main St.
La Crosse, WI  54601
(608) 789-7144
fax (608) 789-7161