(A
German version of this article is available.)
After editing the conference program schedule it seems that the sessions in one period are not shown in the correct numerical order. For example, the sessions should be sorted by numbers / digits 8, 9 and 10, but sessions 10 and 11 appear after 1 and prior to sessions 2, 3, 4..., 8 and 9.
What has to be done to show the sessions in
correct order?