What do journal rankings show?
This page lists journals where David O'Hagan ranks among the global top 100, by peer-reviewed article count, peer-reviewed citation count, or most cited peer-reviewed article within that journal. A low rank indicates David O'Hagan is among the most productive or highly cited authors in that journal.
What do A pos and C pos mean?
The # column is the rank of each listed entry for David O'Hagan — rank 1 means this entry is where David O'Hagan has the most articles or citations. A pos and C pos show the reciprocal: the position of David O'Hagan within that entry's own ranked list, by articles and citations respectively. A low value means David O'Hagan is among the most prominent contributors for that entry.