Need help in locating the source for ubuntu kernel source for 4.2.0-19

[dark test]

Hi guys,
I am looking for the kernel source for 4.2.0-19 .
When i try to download using command
apt-get source linux-image-`uname -r`
it always download source for 4.2.0-22

Any help where i can get this source?

Thanks,
Drake
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