Google Translate helps us out here, and what the website asserts is that in the early days of European hockey, they tended to use a ball and a puck interchangeably, that the 1913 and 1914 LIHG championships used a ball, but that the use of balls fell out of favor during/after WWI. On the one hand, that hardly seems to be "using bandy rules" (hell, we played street hockey with a tennis ball when I was growing up), and I'm very chary about calling a bandy club's assertion in isolation reliable. On the other hand, the piece is well written, goes into some length to qualify its statements, and points out where their research is inconclusive, or that key researchers are now deceased. I'd be comfortable with a statement along the lines of "Some researchers assert that a ball was used instead of a puck in the 1913 and 1914 tournaments," tagged with the link. Ravenswing 09:58, 27 July 2021 (UTC)[reply]
That is my take on it as well, that the only thing different was that they were using a ball, which doesn't make it bandy rules. -DJSasso (talk) 13:52, 19 August 2021 (UTC)[reply]