1. STEP - introduction phase

The Earth System (BA01) STEP

• 280001 VO The Earth System (BA01) STEP (NPI) - part I

Mineralogy and Crystallography (BA02) STEP

• 280003 VO Mineralogy and Crystallography (BA02) STEP (NPI)
• 280004 UE Mineralogy and Crystallography (BA02) STEP (PI)

Mathematics I (BA03) STEP

• 280005 VO Mathematics I (BA03) STEP (NPI), part I
• 280006 UE Mathematics I (BA03) STEP (PI), part I

Palaeobiodiversity (BA04) STEP