https://www.livescience.com/technology/engineering/new-urinal-designs-could-prevent-up-to-265-000-gallons-of-urine-from-spilling-onto-the-floor-each-day
https://nyadagbladet.se/teknik/fritt-fran-stank-med-nya-urinoarer/attachment/urinoar-forskning/
https://www.livescience.com/technology/engineering/new-urinal-designs-could-prevent-up-to-265-000-gallons-of-urine-from-spilling-onto-the-floor-each-day