The ruthenium oxides.

[21] 1906, Z ANORG CHEM, V48, P203

[22] 1888, COMPT REND, V106, P328

[23] 1923, Z ANORG ALLG CHEM, V126, P185

[24] 1916, Z ANORG ALLG CHEM, V95, P177

[25] 1923, Z ANORG ALLG CHEM, V126, P186

[26] 1888, COMPT REND, V106, P1494

[27] 1894, Z ANORG ALLG CHEM, V136, P24

[21] 1906, Z ANORG CHEM, V48, P203

[22] 1888, COMPT REND, V106, P328

[23] 1923, Z ANORG ALLG CHEM, V126, P185

[24] 1916, Z ANORG ALLG CHEM, V95, P177

[25] 1923, Z ANORG ALLG CHEM, V126, P186

[26] 1888, COMPT REND, V106, P1494

[27] 1894, Z ANORG ALLG CHEM, V136, P24