It's hard to give a link to state precisely how much of what to give, as there are different models out there which each suggest slightly different amounts....
This discussion comes up quite a lot on the BritBarf yahoo group, and the general rule of thumb on there is to aim for 10% bone, 10% glandular offal and 80% meat ratio within the meat/bone content of the diet. Bearing in mind your bones have meat on them (hence the term raw meaty bones), in practice this works out at about 40-50% RMB, 10% glandular offal (liver, kidney or pancreas - of which half should be liver) and 40-50% muscle meat (which includes tripe and heart).
If you are feeding vegetables/fruit, this can then be added - again there are great variations as to the amount suggested - some say none is needed, others suggest 15-20% of total diet and others advocate a "meat and 2 veg" approach, where you feed twice the amount of blended vegetables as the amount of meat/bone you give.
I generally work on portion sizes of approx 150g for Honey - and over a week (14 meals) she will normally get 5 raw meaty bone meals, 2 meals of liver, 1-2 meals of tinned fish and 5-6 meals of muscle meat. She also gets tripe in her Kong when we go out.
I've tweaked this over the months, so that it suits her - we started out with more bone, but she was getting a little constipated, so we pulled back a bit. Also if a bone meal is particularly boney, I'll add a bit of tripe mince or something...