[1]Caldwell;Ziegler[JournaloftheAmericanChemicalSociety,1936,vol.58,p.78]
[1]Robinson;Tomlinson[JournaloftheChemicalSociety,1935,p.1283]
[2]CurrentPatentAssignee:C.H.BoehringerSohnAG&Co.KG-US2013/225549,2013,A1Locationinpatent:Paragraph0387
[3]CurrentPatentAssignee:C.H.BoehringerSohnAG&Co.KG-US2013/225593,2013,A1Locationinpatent:Paragraph0402
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[1]Evansetal.[JournaloftheChemicalSociety,1956,p.4106,4111]
[1]Robinson;Tomlinson[JournaloftheChemicalSociety,1935,p.1283]
[2]Evansetal.[JournaloftheChemicalSociety,1956,p.4106,4111]
[3]Larsen,Erik;Danel,Krzysztof;Vaaben,GitteB.;El-Emam,AliA.;Pedersen,ErikB.;Nielsen,Claus[ActaChemicaScandinavica,1996,vol.50,#5,p.417-421]
[1]JournaloftheChemicalSociety,1936,p.1557