In English written speech, we often refer to what we have said, using the phrase "as mentioned above"; or to something that is coming later on with "see below for further explanation", for example.
Is this used in written Japanese and what are the phrases that are used. Do these phrases change, if the writing is vertical and going from right to left?
The obvious way to avoid confusion would be to use something like "as mentioned before" instead, but it is interesting to find out :)
Thank you all for reading!