Connecting devices for low voltage circuits for household and similar purposes. Part 2-2. Particular requirements for connecting devices as separate entities with screwless-type clamping units
Microbiology of food and animal feeding stuffs. Horizontal method for the enumeration of β-glucuronidase-positive Escherichia coli. Part 2. Colony-count technique at 44 °C using 5-bromo-4-chloro-3-indolyl β-D-glucuronide
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