A revised and updated version of
Abraham Kuyper: An Annotated Bibliography 1857-2010 by Tjitze Kuipers (2011)
You can buy a printed edition of this book on the site of the publisher.
The article attributes the shortage of pastors both to the apathy of modernists within the church and to the spirit of the times. However, it goes on to say that, as in the past, influential men and congregations obedient to the call of God will turn the tide. After Article 23 was put into effect (see 1867.01), congregations received the right to elect their pastors, making the shortage of orthodox pastors even more pronounced.