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 _    _      ___                 ___     _    _   
| \  / ||   / _ \\    ____      / _ \\  | || | || 
|  \/  ||  | / \ ||  |    \\   / //\ \\ | || | || 
| .  . ||  | \_/ ||  | [] ||  |  ___  ||| \\_/ || 
|_|\/|_||   \___//   |  __//  |_||  |_|| \____//  
`-`  `-`    `---`    |_|`-`   `-`   `-`   `---`   
                     `-`

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Text this: Về ước lượng metric Bergman