The prayers of Kierkegaard Can be sought from the University of Chicago Press. A touching book. You have to get used to the English translation which is like king James version. The Prayers still speak.
For a comprehensive read about Kirkegaard there are:
The Kirkegaard reader edited by Jane Chamberlain and Johnathan Ree.
and
Soren Kirkegaard a Biography by Joakim Garff