https://hmr.biomedcentral.com/articles/10.1007/BF01609464
https://hmr.biomedcentral.com/articles/10.1007/BF01609461
https://hmr.biomedcentral.com/articles/10.1007/BF01609463
https://hmr.biomedcentral.com/articles/10.1007/BF01609460
https://hmr.biomedcentral.com/articles/10.1007/BF01609462