I don't know if it can help because in past I didn't note the references of my readings, except when they were extracted from books I decided to keep with me (I was not "doctoring"). What I red here and there among old scholars and not exclusively Coon is that almost everywhere at the daybreak of Copper and then Bronze, 'dinaric' or 'dinaroid' types appeared in Western and Southwestern Europe (even Los Millares or South Portugal if I red well) in mines places whatever their density - they were new there. The same in Cataluna, East Pyrenees and Languedoc-Provence. The same among old terminology Food Vessel peoeple of Ireland. Some appeared in Greece and densely enough during Copper/Bronze in Cyprus. the non-metric survey of Desideri concluded the more modified populations during BBs times (what precise time???) were in Switzerland ad Hungary, on the way to more 'iberian' or 'mediterranean' side. In fact other surveys based on metrics concluded the 'dinaroid' type dominant among Bohemia BBs and EVEN in some Hungary cultures linked to BBs. The apparent 'mediterranean' identity of some BBs seems to me more the reflect of the settlement of a small number of these 'dinaroids' in Iberia and in Western Mediterranean but with some strong influences: some preceding southern population could have been put in move, not by force directly from Southern Iberia to Hungary but from places to places where roughly 'mediterraneanlike' populations (perhaps females for the most) were involved. Along Rhine the majority of them were of 'dinaroid' type, type which play a strong role in the first BBs of British Round Barrows people (~2200 BC). The same big role among Poland and Bohemia BBs., before osmosis. All the way BBs is a fluctuating concept and we cannot be sure the different BBs places (not all Western Europe spite some erroneous maps) saw exactly the same people as History was running on, spite the archeological labelof "BB". What is sure is that a new brachycephalic type (new according to discovered buryings), 'dinaric' (and associated 'dinaroid') appeared in Europe (until Denmark) about the 3000 BC. in South, they tended to disappear after some time (departure or/and assimilation?) Pure or the result of statistically stable crossing between 2 phenotypes, the "type" has been everywhere where metals were in cause in Europe. The first apparented brachycephalic types appeared clearly in Anatolia and South Caucasus about the 2000 BC, maybe a bit before, before riching Palestina where they did not mix immediatly with the predecessors. the geographical origin? We don't know. Why going too far from their current places of high density? Western Balkans or Carpathians? the mountains could have favoured a selection upon a basis of crossing envolving 'borrebylike' subbracchycephals and some kind of dolichocephals? the different types of dolichocephals involved can explain nuances? Balkans were the place where met some different people, someones arrived or acculturated to a respectable level of skills in metallurgy, even before the steppic big moves. &: the use of certain cradling methods in Anatolia flattening the occipital could date of a period of an elite domination apparented to these people? other skull disforming traditions occurred along History, linked to elites.
Then, in addition to all of that, you have to know what you're doing, well, unless you're using force, I suppose, and then there's the predilection to getting sloppy drunk and incapable to be considered. 
