I put together the main points of shared parenting for children from a good research overview by Vittorio Carlo Vezzetti, “New approaches to divorce with children: A problem of public health”, Health Psychol Open. 2016 Jul; 3(2) here:

https://illusionoflaw.wordpress.com/the-damage-done-by-family-courts/

Make sure the quack of a lawyer (if you are forced to shovel out money on one) reads this as well so he/she can inform the little judge (as I assume that he/she is too lazy to read him/herself) that kicking out the father from the children’s life has dire consequences for their future.

If you have time you should read the whole published research paper, there is much more in there, I just put down the main damaging findings….