Every reference with a DOI in the deposited reference list resolved to a known
work in Crossref or DataCite at the dated check, and none carried a retraction,
withdrawal, or removal notice.
The 35 references without a DOI — listed, not checked
no DOI — not checkedGermann, H. P.Science and Technology for Leather into the Next Millennium; Tata McGraw-Hill Publishing Company Ltd. New Delhi, 1999; p 283.
no DOI — not checkedProceedings of the LEXPO-XV
no DOI — not checkedes015635sb00003/es015635sb00003_1
no DOI — not checkedWorld Leather
no DOI — not checkedBuljan, J.; Reich, G.; Ludvik, J.Proceedings of the XXIVth IULTCS Congress, London, 1997; pp 138−156.
no DOI — not checkedes015635sb00007/es015635sb00007_1
no DOI — not checkedes015635sb00009/es015635sb00009_1
no DOI — not checkedes015635sb00010/es015635sb00010_1
no DOI — not checkedCioca, G.; Fertell, P. A. Fr. Demande 2,495,054, 1982.
no DOI — not checkedes015635sb00012/es015635sb00012_1
no DOI — not checkedes015635sb00013/es015635sb00013_1
no DOI — not checkedes015635sb00014/es015635sb00014_1
no DOI — not checkedes015635sb00015/es015635sb00015_1
no DOI — not checkedes015635sb00016/es015635sb00016_1
no DOI — not checkedes015635sb00017/es015635sb00017_1
no DOI — not checkedes015635sb00018/es015635sb00018_1
no DOI — not checkedThe Chemistry and Technology of Leather
no DOI — not checkedStandard Methods for the Examination of Water and Wastewater
no DOI — not checkedIndia
no DOI — not checkedes015635sb00022/es015635sb00022_1
no DOI — not checkedes015635sb00023/es015635sb00023_1
no DOI — not checkedTechnological Controls in Leather Manufacture
no DOI — not checkedes015635sb00025/es015635sb00025_1
no DOI — not checkedes015635sb00026/es015635sb00026_1
no DOI — not checkedes015635sb00027/es015635sb00027_1
no DOI — not checkedes015635sb00028/es015635sb00028_1
no DOI — not checkedes015635sb00029/es015635sb00029_1
no DOI — not checkedes015635sb00030/es015635sb00030_1
no DOI — not checkedGustavson, K. H.The Chemistry of Tanning Processes; Academic Press: New York, 1955; p 76.
no DOI — not checkedes015635sb00032/es015635sb00032_1
no DOI — not checkedes015635sb00033/es015635sb00033_1
no DOI — not checkedLee, J. D.Concise Inorganic Chemistry; Chapman & Hall Ltd: London, 1993; p 722.
no DOI — not checkedHuheey, J.Inorganic Chemistry, 3rd ed.; Harper & Row Publish ers: Singapore, 1990; p 384.
no DOI — not checkedes015635sb00037/es015635sb00037_1
no DOI — not checkedes015635sb00039/es015635sb00039_1
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