Search for some journal articles (will need access to a University library or portal)

Please read the carefully. I am looking for PDFs or scans, or even mobile phone photos of the following three journal articles: Author: Baderko, E. A. Title: Boundary value problems for a parabolic equation, and boundary integral equations. Journal: Differential Equations 28, No. 1, 15–20 (1992) Author: Baderko, E. A. Title: Smoothness of a 2m-parabolic potential of a simple layer. Journal: Differential Equations 26, No. 1, 1-7 (1990) Authro: Baderko, E. A. Title: A parabolic boundary-value problem in a simple domain. Journal: Differential Equations 27, No. 1, 12-16 (1991) They are all from different volumes of the same journal. The link to the journal's website is: [login to view URL] You will need access to a University library portal that has subscription to this journal, or you will need physical access to a library with hard copies of these volumes. You should be able to search your library catalogue pretty quickly if these articles are accessible. If you don't have access to the articles, please don't bid.