Original plans for the contest were shelved over a year ago for fear of violent retribution.
Ramadan is a professor of Islamic Studies at Oxford, but he has been on a leave of absence since November 2017, after sexual allegations against him emerged.
The study addresses "the unprecedented dilemmas confronting European states resulting from mass immigration from Africa and the Middle East."
The German government estimates between 4.4 and 4.7 million Muslims are living in Germany.
"Islamist radicalization is a threat to our society, and not just when it leads to violence. It's a challenge every time the law of the state is respected only if compatible with religious tenets."
The local Christian couple had argued that the call to prayers violated their own religious rights.
"You allowed your mind to be poisoned by those who claim to be leaders," the judge told the killer.
"Acceptance and respect of Austrian values are basic conditions for successful cohabitation between the majority Austrian population and people from third countries living in Austria."
Rabbi Abraham Cooper from the international human rights organization Simon Wiesenthal Center had sharply criticized the Ulm authorities.
Hungarian FM: "Politics has raped European law and values."