Seeking references/articles detailing IRS Publication 504

[Guest [Pat M]]

Can anyone refer me to articles, briefs, bulletins etc. that expand on Publication 504: Divorced or Separated Individuals? For example, if a QDRO includes child support and alimony from retirement plan, how is tax computed? What if amounts are not detailed and the ex-spouse is named as recipient of all - must all amounts be taxable to the ex-spouse?