Wojtyńska, Joanna. “Disabled Seniors: Problems With Concept Operationalization”. Researching Disability. The Opportunities and Dangers of Theoretical and Methodological Assumptions in Disability Studies, edited by Grzegorz Całek et al., Lodz University Press, 2020, pp. 255-73, https://doi.org/10.18778/8142-757-9.17.