Yes addictedtofrazzles, the clue is right there in the name. Complementary feeding (the very definition of complementary being to complement). Unless the paper has changed dramatically since the last time I read it, it makes no reference to quantities of breast milk vs. solids required (only recommendations on introducing food by 26 weeks). It does, however, back up several of my points (what a coincidence... oh yes, that's because I've read it before).
But, while we're talking about the ESPHGAN paper, take a look at the 'Nutritional Aspects' section. Specifically the first paragraph that talks about estimates and assumptions on breast milk which make up their recommendations (estimates and assumptions, not actual research). They cite a study which states:
"More research on energy intake in 5--6-month-old exclusively breast-fed infants is necessary, and information on the metabolisability of breast milk in mid-infancy is desirable."
So what they're saying is "based on our assumptions and the results of a study which needs further research we say XYZ about weaning". Specific, no?
Read the 2nd paragraph (same section):
"European infants are unlikely to experience deficiencies of macronutrients during the complementary feeding period. Rather, they may be at risk for excessive intakes-a matter of potential concern, given the increasing rates of childhood obesity."
Also, further down:
"Continued breast-feeding is recommended along with the introduction of complementary feeding."
See also:
"Overconsumption of energy-dense complementary foods may induce excessive weight gain in infancy, which has been associated with a 2- to 3-fold higher risk of obesity in school age and childhood"
The irony (irony, iron, harhar) in the ESPGHAN paper is that it discusses the low amounts of iron in breast milk (without mentioning that it is highly bioavailable - roughly 50% of iron in breastmilk is absorbed compared to less than 12% from artificial milk) and then further down mentions exclusive breastfeeding as a solution to iron-deficiency anaemia.
It makes no reference to the multiple studies which state exclusive and/or prolonged breastfeeding are recommended to avoid iron deficiency.
Anyway, what was my point again? I forget...