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 _    _    _    _     _  _      ___      _____   
| || | || | || | ||  | \| ||   / _ \\   / ____|| 
| || | || | || | ||  |  ' ||  / //\ \\ / //---`' 
| \\_/ || | \\_/ ||  | .  || |  ___  ||\ \\___   
 \____//   \____//   |_|\_|| |_||  |_|| \_____|| 
  `---`     `---`    `-` -`  `-`   `-`   `----`

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Text this: Long-term operation of a small biogas/diesel dual-fuel engine for on-farm electricity generation