Lonely but not alone: Emotional isolation and social isolation as two distinct dimensions of loneliness in older people by van Baarsen, B, Snijders, T, Smit, J, van Duijn, MAJ

Patterns of adjustment to partner loss in old age: The Widowhood Adaptation Longitudinal Study by van Baarsen, B, van Duijn, MAJ, Smit, J, Snijders, T, Knipscheer, K