84. IPUMS IHGIS (International Historical Geographic Information System) Bookmark Format Data archive or collection
85. IPUMS TERRA (Terra Populus: Integrated Data on Population and Environment) Bookmark Format Data archive or collection
86. Low- and Middle-Income Country Primary Health Care Expenditures Bookmark Format Series - completed
88. Measurement of Cross-cutting Cleavages and Other Multidimensional Cleavage Structures Bookmark Format Series - ongoing