debian buster package signature problem

[Luitz Preßler]

Hello,

trying to do a test install of 2.0.7 on Debian buster (2.0.8 to be
expected? :-), bird2 in buster backports repo?) I tried to use
https://bird.network.cz/?download&tdir=debian/

http://bird.network.cz/debian/apt.key added as proposed,
but signature errors for the repo on "apt-get update"

Err:2 https://bird.network.cz/debian buster InRelease
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY B188E2B695BD4743
...

Any idea? / Please correct, regards
  Lutz 

-- 
Lutz Preßler                 http://www.SerNet.de/
SerNet Service Network GmbH, Bahnhofsallee 1b, D-37081 Göttingen
Tel.: +49-551-370000-0,      FAX: +49-551-370000-9
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