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 _    _     _____    _    _      ___    __    __  
| |  | ||  |  ___|| | \  / ||   / _ \\  \ \\ / // 
| |/\| ||  | ||__   |  \/  ||  | / \ ||  \ \/ //  
|  /\  ||  | ||__   | .  . ||  | \_/ ||   \  //   
|_// \_||  |_____|| |_|\/|_||   \___//     \//    
`-`   `-`  `-----`  `-`  `-`    `---`       `

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Text this: MATRIX CHARACTERIZATION OF INPUT AND OUTPUT MATERIALS OF BIOGAS PLANTS