Collect. Czech. Chem. Commun.
     1950, 15, 433-436
  https://doi.org/10.1135/cccc19500433
  
The polarographic reduction of rutin, quercetin and morin
O. Čapka and J. Opavský
    
      Collect. Czech. Chem. Commun.
     1950, 15, 433-436
  https://doi.org/10.1135/cccc19500433