zts_harvester: add 6 IxTheo journals (Cambridge)
zts_harvester: add 6 IxTheo journals (Cambridge)

ubtue/ub_tools,ubtue/ub_tools,ubtue/ub_tools,ubtue/ub_tools,ubtue/ub_tools,ubtue/ub_tools,ubtue/ub_tools,ubtue/ub_tools