id	keyword
hssr-928	medieval
hssr-928	century
hssr-928	catastrophes
hssr-928	middle
hssr-928	ages
hssr-928	weather
hssr-928	und
hssr-928	von
hssr-928	earthquakes
hssr-928	period
hssr-928	events
hssr-928	der
hssr-928	research
hssr-928	environment
hssr-928	water
hssr-928	new
hssr-928	floods
hssr-928	vol
hssr-928	humanities
hssr-928	climate