The second link is better as "https://launchpad.net/~ci-train-ppa-service/+archive/ubuntu/2624/" withut the tail +packages. (you get from one to the other on that page, so the initial link is not too bad)
The second link is better as "https:/ /launchpad. net/~ci- train-ppa- service/ +archive/ ubuntu/ 2624/" withut the tail +packages. (you get from one to the other on that page, so the initial link is not too bad)