I am working on an article for my blog and am looking for useful reference material. Going to talk about a very important issue for families who ride with young to very young children: Dehydration. I've Googled the subject every way I can think of and have found a certain amount of useful information. I am a little disappointed with the depth of it. There is tons of material on how to know when you need to take the kid to the emergency room but I find little solid information on avoiding that stage beyond general advice. I've ridden with my children when they were very young and potentially very vulnerable without any trouble. We succeeded because I have a lot of experience and can monitor them right down to small behavioral changes that send up red flags for me. I don't really want my article just to rely on my own homegrown experience for everything though. My website is intended to become a real resource so I'm aiming for a certain level of professional research standing behind what I say. Any help (ie links) would be appreciated.