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10.1007%2FBF00736049
10.1007%2FBF00736049
https://api.crossref.org/works/10.1007%2FBF00736049
84bec414c7316af1123d0322cfaa7917e3f964e6
P854
10.1007%2FBF00736049
https://api.crossref.org/works/10.1007%2FBF00736049