https://hmr.biomedcentral.com/articles/10.1007/BF01609101
https://hmr.biomedcentral.com/articles/10.1007/BF01609102
https://hmr.biomedcentral.com/articles/10.1007/BF01609103
https://hmr.biomedcentral.com/articles/10.1007/BF01609100
https://hmr.biomedcentral.com/articles/10.1007/BF01609099
https://hmr.biomedcentral.com/articles/10.1007/BF01609104