Publications for:

pest = Veronica persica (weed)
crop = Barley (Hordeum vulgare)

found 2 publications:

2012

Using precision farming technology to quantify yield effects attributed to weed competition and herbicide application
Weed Research (2012) 52 (1), 6-15
publishers website - pestinfo wiki

1990

Untersuchungen zur Abbildungsgüte simulierter Befallsverläufe bei Unkräutern
[Validation of simulation studies with weeds]
Zeitschrift für Pflanzenkrankheiten und Pflanzenschutz - Journal of Plant Diseases and Protection (1990) 97 (2), 133-141
pestinfo wiki